paired data and the rectangular coordinate...
TRANSCRIPT
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Paired Data and theRectangular Coordinate System
Professor Tim Busken
Department of MathematicsGrossmont College
January 29, 2013
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 2: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/2.jpg)
Paired Data and theRectangular Coordinate System
Learning Objectives:
Graph ordered pairs on a rectangular coordinate system.
Graph linear equations by finding intercepts or by making atable.
Graph horizontal and vertical lines.
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 3: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/3.jpg)
Ordered Pairs
We now turn our attention to equations containing two variables, xand y. Paired data plays an important role in these type ofequations.
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 4: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/4.jpg)
Ordered Pairs
Definition
A pair of numbers enclosed in parenthesis and separated by acomma, such as (−2, 1), is called an ordered pair of numbers. Thefirst number in the pair is called the x-coordinate of the orderedpair; the second number is called the y-coordinate. For the orderedpair (−2, 1), the x-coordinate is −2 and the y-coordinate is 1.
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 5: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/5.jpg)
The Rectangular Coordinate System
We use a rectangular coordinate system to visualize ordered pairs.
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
1
3
−5
5
−2
2
4
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 6: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/6.jpg)
The Rectangular Coordinate System
A rectangular coordinate system is made by drawing two realnumber lines at right angles to each other.
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
1
3
−5
5
−2
2
4
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 7: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/7.jpg)
The Rectangular Coordinate System
A rectangular coordinate system is made by drawing two realnumber lines at right angles to each other.
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
1
3
−5
5
−2
2
4
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 8: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/8.jpg)
The Rectangular Coordinate System
A rectangular coordinate system is made by drawing two realnumber lines at right angles to each other.
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
1
3
−5
5
−2
2
4
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 9: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/9.jpg)
The Rectangular Coordinate System
Two number lines, called axes, cross each other at zero.
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
1
3
−5
5
−2
2
4
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 10: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/10.jpg)
The Rectangular Coordinate System
Two number lines, called axes, cross each other at zero. This pointis called the origin.
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
1
3
−5
5
−2
2
4
Origin
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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The Rectangular Coordinate System
Relative to the origin, positive directions are to the right and up.
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
1
3
−5
5
−2
2
4
Origin
Positive
Direction
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 12: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/12.jpg)
The Rectangular Coordinate System
Negative directions are to the left and down.
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
1
3
−5
5
−2
2
4
Origin
Positive
Direction
Negative
Direction
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 13: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/13.jpg)
The Rectangular Coordinate System
The horizontal number line is called the x-axis
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
1
3
−5
5
−2
2
4
Origin
Positive
Direction
Negative
Direction
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 14: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/14.jpg)
The Rectangular Coordinate System
The horizontal number line is called the x-axis
y
1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
1
3
−5
5
−2
2
4
Origin
Positive
Direction
Negative
Direction
x
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 15: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/15.jpg)
The Rectangular Coordinate System
The horizontal number line is called the x-axis and the verticalnumber line is called the y-axis.
y
1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
1
3
−5
5
−2
2
4
Origin
Positive
Direction
Negative
Direction
x
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 16: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/16.jpg)
The Rectangular Coordinate System
The horizontal number line is called the x-axis and the verticalnumber line is called the y-axis.
1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
1
3
−5
5
−2
2
4
Origin
Positive
Direction
Negative
Direction
x
y
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 17: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/17.jpg)
The Rectangular Coordinate System
The two number lines divide the coordinate system into four quadrants, which wenumber I through IV in a counterclockwise direction.
1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
1
3
−5
5
−2
2
4
Origin
Positive
Direction
Negative
Direction
x
y
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 18: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/18.jpg)
The Rectangular Coordinate System
The two number lines divide the coordinate system into four quadrants, which wenumber I through IV in a counterclockwise direction.
1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
1
3
−5
5
−2
2
4
Origin
Positive
Direction
Negative
Direction
x
y
I
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 19: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/19.jpg)
The Rectangular Coordinate System
The two number lines divide the coordinate system into four quadrants, which wenumber I through IV in a counterclockwise direction.
1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
1
3
−5
5
−2
2
4
Origin
Positive
Direction
Negative
Direction
x
y
III
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 20: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/20.jpg)
The Rectangular Coordinate System
The two number lines divide the coordinate system into four quadrants, which wenumber I through IV in a counterclockwise direction.
1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
1
3
−5
5
−2
2
4
Origin
Positive
Direction
Negative
Direction
x
y
III
III
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 21: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/21.jpg)
The Rectangular Coordinate System
The two number lines divide the coordinate system into four quadrants, which wenumber I through IV in a counterclockwise direction.
1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
1
3
−5
5
−2
2
4
Origin
Positive
Direction
Negative
Direction
x
y
III
III IV
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 22: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/22.jpg)
Graphing Ordered Pairs
Algorithm
To graph the ordered pair (a, b) on the rectangular coordinatesystem, we:
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 23: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/23.jpg)
Graphing Ordered Pairs
Algorithm
To graph the ordered pair (a, b) on the rectangular coordinatesystem, we:
1 begin at the origin and move along the x-axis a units right or aunits left (right if a is positive and left if a is negative).
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 24: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/24.jpg)
Graphing Ordered Pairs
Algorithm
To graph the ordered pair (a, b) on the rectangular coordinatesystem, we:
1 begin at the origin and move along the x-axis a units right or aunits left (right if a is positive and left if a is negative).
2 From that point we move b units up or down (up if b is positiveand down if b is negative).
3 The point where we end up is the graph of the ordered pair.
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 25: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/25.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
1
3
−5
5
−2
2
4
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 26: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/26.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
To plot (2, 3), begin at the origin.
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
Origin
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 27: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/27.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
To plot (2, 3), begin at the origin. Travel along the x-axis 2 unitsright
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
Origin
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 28: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/28.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
To plot (2, 3), begin at the origin. Travel along the x-axis 2 unitsright
y
x2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
1
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 29: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/29.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
To plot (2, 3), begin at the origin. Travel along the x-axis 2 unitsright
y
x2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
1
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 30: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/30.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
From that point, move in the upwards (positive y) direction 3 units.
y
x2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
1
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 31: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/31.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
From that point, move in the upwards (positive y) direction 3 units.
y
x2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
1
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 32: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/32.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
From that point, move in the upwards (positive y) direction 3 units.
y
x2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
1
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 33: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/33.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
From that point, move in the upwards (positive y) direction 3 units.
y
x2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
1
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 34: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/34.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
From that point, move in the upwards (positive y) direction 3 units.
y
x2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
1
1
(2, 3)
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 35: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/35.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
To plot (−2, 3), begin at the origin.
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
Origin
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 36: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/36.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
To plot (−2, 3), begin at the origin. Travel along the x-axis 2 unitsleft (in the negative direction).
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
Origin
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 37: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/37.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
To plot (−2, 3), begin at the origin. Travel along the x-axis 2 unitsleft (in the negative direction).
y
x2 3 4 5−3−4
−4
−5
−1
3
−5
5
−2
4
1
−2
−3
2
1−1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 38: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/38.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
To plot (−2, 3), begin at the origin. Travel along the x-axis 2 unitsleft (in the negative direction).
y
x2 3 4 5−3−4
−4
−5
−1
3
−5
5
−2
4
1
−1
−2
−3
2
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 39: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/39.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
From that point, move in the upwards (positive y) direction 3 units.
y
x2 3 4 5−3−4
−4
−5
−1
3
−5
5
−2
4
1
−1
−2
−3
2
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 40: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/40.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
From that point, move in the upwards (positive y) direction 3 units.
y
x2 3 4 5−3−4
−4
−5
−1
3
−5
5
−2
4
1
−1
−2
−3
2
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 41: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/41.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
From that point, move in the upwards (positive y) direction 3 units.
y
x2 3 4 5−3−4
−4
−5
−1
3
−5
5
−2
4
1
−1
−2
−3
2
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 42: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/42.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
From that point, move in the upwards (positive y) direction 3 units.
y
x2 3 4 5−3−4
−4
−5
−1
3
−5
5
−2
4
1
−1
−2
−3
2
(−2, 3)
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 43: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/43.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
To plot (−2,−3), begin at the origin.
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
Origin
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 44: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/44.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
To plot (−2,−3), begin at the origin. Travel along the x-axis 2 unitsleft (in the negative direction).
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
Origin
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 45: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/45.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
To plot (−2,−3), begin at the origin. Travel along the x-axis 2 unitsleft (in the negative direction).
y
x2 3 4 5−3−4
−4
−5
−1
3
−5
5
−2
2
4
1
1
−2
−3
−1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 46: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/46.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
To plot (−2,−3), begin at the origin. Travel along the x-axis 2 unitsleft (in the negative direction).
y
x2 3 4 5−3−4
−4
−5
−1
3
−5
5
−2
2
4
1
1−1
−2
−3
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 47: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/47.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
From that point, move in the downwards (negative y) direction 3units.
y
x2 3 4 5−3−4
−4
−5
−1
3
−5
5
−2
2
4
1
1−1
−2
−3
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 48: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/48.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
From that point, move in the downwards (negative y) direction 3units.
y
x2 3 4 5−3−4
−4
−5
−1
3
−5
5
−2
2
4
1
1−1
−2
−3
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 49: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/49.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
From that point, move in the downwards (negative y) direction 3units.
y
x2 3 4 5−3−4
−4
−5
−1
3
−5
5
−2
2
4
1
1−1
−2
−3
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 50: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/50.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
From that point, move in the downwards (negative y) direction 3units.
y
x2 3 4 5−3−4
−4
−5
−1
3
−5
5
−2
2
4
1
1−1
−2
−3
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 51: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/51.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
From that point, move in the downwards (negative y) direction 3units.
y
x2 3 4 5−3−4
−4
−5
−1
3
−5
5
−2
2
4
1
−1
−2
−3
(−2,−3)
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 52: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/52.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
To plot (2,−3), begin at the origin.
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
Origin
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 53: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/53.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
To plot (2,−3), begin at the origin. Travel along the x-axis 2 unitsright (in the positive direction).
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
Origin
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 54: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/54.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
To plot (2,−3), begin at the origin. Travel along the x-axis 2 unitsright (in the positive direction).
y
x2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
1
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 55: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/55.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
To plot (2,−3), begin at the origin. Travel along the x-axis 2 unitsright (in the positive direction).
y
x2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
1
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 56: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/56.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
From that point, move in the downwards (negative y) direction 3units.
y
x2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
1
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 57: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/57.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
From that point, move in the downwards (negative y) direction 3units.
y
x2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
1
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 58: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/58.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
From that point, move in the downwards (negative y) direction 3units.
y
x2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
1
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 59: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/59.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
From that point, move in the downwards (negative y) direction 3units.
y
x2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
1
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 60: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/60.jpg)
Example 1: Plot (graph) the following ordered pairs: (2, 3), (−2, 3), (−2,−3), (2,−3),
From that point, move in the downwards (negative y) direction 3units.
y
x2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
1
1
(2,−3)
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 61: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/61.jpg)
Graphing Ordered Pairs
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 62: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/62.jpg)
Example 2: Plot (graph) the following ordered pairs: (3, 0), (0, 2), (−3, 0), (0,−2),
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
1
3
−5
5
−2
2
4
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 63: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/63.jpg)
Example 2: Plot (graph) the following ordered pairs: (3, 0), (0, 2), (−3, 0), (0,−2),
To plot (3, 0), begin at the origin.
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
Origin
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 64: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/64.jpg)
Example 2: Plot (graph) the following ordered pairs: (3, 0), (0, 2), (−3, 0), (0,−2),
To plot (3, 0), begin at the origin. Travel along the x-axis 3 unitsright, in the positive direction.
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
Origin
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 65: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/65.jpg)
Example 2: Plot (graph) the following ordered pairs: (3, 0), (0, 2), (−3, 0), (0,−2),
To plot (3, 0), begin at the origin. Travel along the x-axis 3 unitsright, in the positive direction.
y
x3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
1
21
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 66: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/66.jpg)
Example 2: Plot (graph) the following ordered pairs: (3, 0), (0, 2), (−3, 0), (0,−2),
To plot (3, 0), begin at the origin. Travel along the x-axis 3 unitsright, in the positive direction.
y
x3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
1
21
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 67: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/67.jpg)
Example 2: Plot (graph) the following ordered pairs: (3, 0), (0, 2), (−3, 0), (0,−2),
To plot (3, 0), begin at the origin. Travel along the x-axis 3 unitsright, in the positive direction.
y
x3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
1
21
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 68: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/68.jpg)
Example 2: Plot (graph) the following ordered pairs: (3, 0), (0, 2), (−3, 0), (0,−2),
To plot (3, 0), begin at the origin. Travel along the x-axis 3 unitsright, in the positive direction.
y
x3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
1
21
(3, 0)
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 69: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/69.jpg)
Example 2: Plot (graph) the following ordered pairs: (3, 0), (0, 2), (−3, 0), (0,−2),
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
1
3
−5
5
−2
2
4
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 70: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/70.jpg)
Example 2: Plot (graph) the following ordered pairs: (3, 0), (0, 2), (−3, 0), (0,−2),
To plot (0, 2), begin at the origin. Travel along the x-axis 0 units.
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
Origin
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 71: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/71.jpg)
Example 2: Plot (graph) the following ordered pairs: (3, 0), (0, 2), (−3, 0), (0,−2),
From that point (the origin), move up 2 spaces in the positive ydirection.
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
Origin
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
![Page 72: Paired Data and the Rectangular Coordinate Systemtimbusken.com/assets/math-110/handouts/chapter-2/...Paired Data and the Rectangular Coordinate System Learning Objectives: Graph ordered](https://reader030.vdocuments.mx/reader030/viewer/2022040800/5e364084a2faae1a2c320fe9/html5/thumbnails/72.jpg)
Example 2: Plot (graph) the following ordered pairs: (3, 0), (0, 2), (−3, 0), (0,−2),
From that point (the origin), move up 2 spaces in the positive ydirection.
y
x3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
1
21
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Example 2: Plot (graph) the following ordered pairs: (3, 0), (0, 2), (−3, 0), (0,−2),
From that point (the origin), move up 2 spaces in the positive ydirection.
y
x3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
1
21
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Example 2: Plot (graph) the following ordered pairs: (3, 0), (0, 2), (−3, 0), (0,−2),
From that point (the origin), move up 2 spaces in the positive ydirection.
y
x3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
1
21
(0, 2)
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Example 2: Plot (graph) the following ordered pairs: (3, 0), (0, 2), (−3, 0), (0,−2),
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
1
3
−5
5
−2
2
4
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Example 2: Plot (graph) the following ordered pairs: (3, 0), (0, 2), (−3, 0), (0,−2),
To plot (−3, 0), begin at the origin.
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
Origin
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Example 2: Plot (graph) the following ordered pairs: (3, 0), (0, 2), (−3, 0), (0,−2),
To plot (−3, 0), begin at the origin. Travel along the x-axis 3 unitsleft (the negative x direction).
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
Origin
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Example 2: Plot (graph) the following ordered pairs: (3, 0), (0, 2), (−3, 0), (0,−2),
To plot (−3, 0), begin at the origin. Travel along the x-axis 3 unitsleft (the negative x direction).
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
Origin
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Example 2: Plot (graph) the following ordered pairs: (3, 0), (0, 2), (−3, 0), (0,−2),
To plot (−3, 0), begin at the origin. Travel along the x-axis 3 unitsleft (the negative x direction).
y
x2 3 4 5−3−4
−4
−5
−1
3
−5
5
−2
2
4
1
−2
−3
1−1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Example 2: Plot (graph) the following ordered pairs: (3, 0), (0, 2), (−3, 0), (0,−2),
To plot (−3, 0), begin at the origin. Travel along the x-axis 3 unitsleft (the negative x direction).
y
x2 3 4 5−3−4
−4
−5
−1
3
−5
5
−2
2
4
1
−2
−3
1−1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Example 2: Plot (graph) the following ordered pairs: (3, 0), (0, 2), (−3, 0), (0,−2),
To plot (−3, 0), begin at the origin. Travel along the x-axis 3 unitsleft (the negative x direction).
y
x2 3 4 5−3−4
−4
−5
−1
3
−5
5
−2
2
4
1
−2
−3
1−1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Example 2: Plot (graph) the following ordered pairs: (3, 0), (0, 2), (−3, 0), (0,−2),
From that point (the origin), move up 0 spaces in the y direction.
y
x2 3 4 5−3−4
−4
−5
−1
3
−5
5
−2
2
4
1
−2
−3
1−1
(−3, 0)
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Example 2: Plot (graph) the following ordered pairs: (3, 0), (0, 2), (−3, 0), (0,−2),
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
1
3
−5
5
−2
2
4
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Example 2: Plot (graph) the following ordered pairs: (3, 0), (0, 2), (−3, 0), (0,−2),
To plot (0,−2), begin at the origin. Travel along the x-axis 0 units.
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
Origin
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Example 2: Plot (graph) the following ordered pairs: (3, 0), (0, 2), (−3, 0), (0,−2),
From that point (the origin), move up 2 spaces in the negative ydirection (downwards).
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
Origin
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Example 2: Plot (graph) the following ordered pairs: (3, 0), (0, 2), (−3, 0), (0,−2),
From that point (the origin), move up 2 spaces in the negative ydirection (downwards).
y
x2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
1
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Example 2: Plot (graph) the following ordered pairs: (3, 0), (0, 2), (−3, 0), (0,−2),
From that point (the origin), move up 2 spaces in the negative ydirection (downwards).
y
x2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
1
1
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Example 2: Plot (graph) the following ordered pairs: (3, 0), (0, 2), (−3, 0), (0,−2),
From that point (the origin), move up 2 spaces in the negative ydirection (downwards).
y
x2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
1
1
(0,−2)
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Concept Check
Plot (graph) (3, 4), (−4, 3), (−1,−4) and (5,−4)
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
1
3
−5
5
−2
2
4
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Concept Check
Plot (graph) (3, 4), (−4, 3), (−1,−4) and (5,−4)
y
x2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
1
1
(−1,−4)
(−4, 3) (3, 4)
(5,−4)
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Concept Check
Plot (graph) (4, 0), (0,−3), (−1, 0), and (0, 5)
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
1
3
−5
5
−2
2
4
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Concept Check
Plot (graph) (4, 0), (0,−3), (−1, 0), and (0, 5)
y
x2 3 4 5−1−3−4
−3
−4
−5
−2
−1
3
−5
5
−2
2
4
1
1
(4, 0)(−1, 0)
(0,−3)
(0, 5)
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Definition
Suppose A , B and C represent any real numbers. A linearequation in two variables is an equation having the form
A x + B y = C,
For example, 2 x + 3 y = 1 is a linear equation in the two variablesx and y.
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Solutions of a linear equation in two variables
Any linear equation in two variables always has in infinitenumber of solutions, and solutions come in the form of orderedpairs.
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Solutions of a linear equation in two variables
Any linear equation in two variables always has in infinitenumber of solutions, and solutions come in the form of orderedpairs.
Terminology Definition Illustration
Solution of an An ordered pair (a, b) (1,4) is a solution ofequation in x and y that yields a true y = 5 x − 1, since
statement if substituting x=1 andx = a and y = b y = 4 renders the
LHS = 4 and theRHS = 5(1) − 1 = 4
LHS is an abbreviation for “left-hand side” (of the equation)
RHS is an abbreviation for “right-hand side” (of the equation)
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Equations and Graphs
Definition
For each ordered-pair solution, (a, b), of an equation in x and ythere is a point (a, b) in a rectangular coordinate plane. The set ofall such points is called a graph of the equation.
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Equations and Graphs
Definition
For each ordered-pair solution, (a, b), of an equation in x and ythere is a point (a, b) in a rectangular coordinate plane. The set ofall such points is called a graph of the equation.
We can graph a linear equation by finding 3 ordered-pair solutionsof the equation, plot the corresponding points on the rectangulargrid, then draw a line between the three points.
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Equations and Graphs
Definition
For each ordered-pair solution, (a, b), of an equation in x and ythere is a point (a, b) in a rectangular coordinate plane. The set ofall such points is called a graph of the equation.
We can graph a linear equation by finding 3 ordered-pair solutionsof the equation, plot the corresponding points on the rectangulargrid, then draw a line between the three points.
We use the third point for “insurance.” If all three points line up in a straight we have not
made a mistake!
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Example 3: Graph the linear equation y = −12x − 3
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
1
3
−5
5
−2
2
4
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Example 3: Graph the linear equation y = −12x − 3
We begin by a making a table that summarizes x and y values.Since every value of x we substitute into the equation will bemultiplied by −1
2 , we use numbers for x that are divisible by 2.
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
1
3
−5
5
−2
2
4
x y (x , y)
-2
0
2
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Example 3: Graph the linear equation y = −12x − 3
That way, when we multiply by −12 , the result will be an integer.
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
1
3
−5
5
−2
2
4
x y (x , y)
-2
0
2
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Example 3: Graph the linear equation y = −12x − 3
We let x = −2 in the equation to find the y-value of the ordered pairwhich is associated with x-coordinate -2.
x y (x , y)
-2
0
2
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Example 3: Graph the linear equation y = −12x − 3
We let x = −2 in the equation to find the y-value of the ordered pairwhich is associated with x-coordinate -2.
y = −12· (x) − 3
= −12· (−2) − 3
= 1 − 3
= −2
x y (x , y)
-2
0
2
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Example 3: Graph the linear equation y = −12x − 3
Upon simplification, we get the ordered pair solution (-2,-2)
y = −12· (x) − 3
= −12· (−2) − 3
= 1 − 3
= −2
x y (x , y)
-2 -2 (-2,-2)
0
2
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Example 3: Graph the linear equation y = −12x − 3
Next, we let x = 0 in the equation to find the y-value of the orderedpair which is associated with x-coordinate 0.
y = −12· (x) − 3
= −12· (0) − 3
= 0 − 3
= −3
x y (x , y)
-2 -2 (-2,-2)
0
2
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Example 3: Graph the linear equation y = −12x − 3
This gives us the ordered pair solution (0,-3)
y = −12· (x) − 3
= −12· (0) − 3
= 0 − 3
= −3
x y (x , y)
-2 -2 (-2,-2)
0 -3 (0,-3)
2
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Example 3: Graph the linear equation y = −12x − 3
Afterwards, we let x = 2 in the equation.
y = −12· (x) − 3
= −12· (2) − 3
= −1 − 3
= −4
x y (x , y)
-2 -2 (-2,-2)
0 -3 (0,-3)
2
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Example 3: Graph the linear equation y = −12x − 3
Upon simplification, we get the ordered pair solution (2,-4)
y = −12· (x) − 3
= −12· (2) − 3
= −1 − 3
= −4
x y (x , y)
-2 -2 (-2,-2)
0 -3 (0,-3)
2 -4 (2,-4)
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Example 3: Graph the linear equation y = −12x − 3
We now locate the three ordered pair solutions (points) on therectangular coordinate grid, then draw a line through the solutions.
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
1
3
−5
5
−2
2
4
x y (x , y)
-2 -2 (-2, -2)
0 -3 (0,-3)
2 -5 (2, -4)
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Example 3: Graph the linear equation y = −12x − 3
We now locate the three ordered pair solutions (points) on therectangular coordinate grid, then draw a line through the solutions.
y
x2 3 4 5−1−3−4
−3
−5
−2
−1
3
−5
5
−2
2
4
1
1
−4
(−2,−2)
x y (x , y)
-2 -2 (-2, -2)
0 -3 (0,-3)
2 -5 (2, -4)
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Example 3: Graph the linear equation y = −12x − 3
We now locate the three ordered pair solutions (points) on therectangular coordinate grid, then draw a line through the solutions.
y
x2 3 4 5−1−3−4
−3
−5
−2
−1
3
−5
5
−2
2
4
1
1
(0,−3)
−4
(−2,−2)
x y (x , y)
-2 -2 (-2, -2)
0 -3 (0,-3)
2 -5 (2, -4)
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Example 3: Graph the linear equation y = −12x − 3
We now locate the three ordered pair solutions (points) on therectangular coordinate grid, then draw a line through the solutions.
y
x2 3 4 5−1−3−4
−3
−5
−2
−1
3
−5
5
−2
2
4
1
1
(0,−3)
(2,−4)−4
(−2,−2)
x y (x , y)
-2 -2 (-2, -2)
0 -3 (0,-3)
2 -5 (2, -4)
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Example 3: Graph the linear equation y = −12x − 3
We now locate the three ordered pair solutions (points) on therectangular coordinate grid, then draw a line through the solutions.
y
x2 3 4 5−1−3−4
−3
−5
−2
−1
3
−5
5
−2
2
4
1
1
(0,−3)
(2,−4)−4
(−2,−2)
x y (x , y)
-2 -2 (-2, -2)
0 -3 (0,-3)
2 -5 (2, -4)
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Concept Check: Graph y =13x + 3
y
x1 2 3 4 5−1−3−4
−3
−4
−5
−2
−1
1
3
−5
5
−2
2
4 x y (x , y)
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Concept Check: Graph y =13x + 3
y
x2 3 4 5−1−3−4
−3
−5
−2
−1
3
−5
5
−2
2
4
1
1
−4
(−3, 2)(3, 4)
(0, 3)
x y (x , y)
-3 2 (-3,2)
0 3 (0,3)
3 4 (3,4)
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Definition
The graph of an equation has an x-intercept whenever the graphof the equation crosses the x axis. The x intercept always occurswhen the value of y is equal to zero.
x
y
x intercept
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Definition
The graph of an equation has an y-intercept whenever the graphof the equation crosses the y axis. The y intercept always occurswhen the value of x is equal to zero.
y
xy intercept
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Example 4 Find the x- and y-intercepts for5x − 7y = −35, then graph the solution set.
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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Theorem
Suppose a and b are real numbers. Graphs of linear equations ofthe form x = a are vertical lines and graphs of linear equations ofthe form y = b are horizontal lines.
x
y
x = 3
x
y
y = 3
graph of x = 3 graph of y = 3
Professor Tim Busken Paired Data and the Rectangular Coordinate System
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More Classroom Examples
Work Together! Stop at 8:35 a.m. for Quiz 1 ReviewGraph each of the following lines:
y =12
x
x = −2
y = −4
Professor Tim Busken Paired Data and the Rectangular Coordinate System