bell work12/4/14 find the slope. yesterday’s homework 1.any questions? 2.please pass your homework...
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Bell Work 12/4/14Find the slope.
1. 4, 2 and 7, 31x 1y 2x 2y
2. 3, 7 and 2, 4 1x 1y 2x 2y
3. 6, 3 and 2, 91x 1y 2x 2y
Yesterday’s Homework
1. Any questions?2. Please pass your homework to the front.
• Make sure the correct heading is on your paper.• Is your NAME on your paper?
• Make sure the homework is 100% complete.• Incomplete work will NOT be accepted.
Slope-Intercept Form(in function form)
04/20/23
Heading
TSWBAT: graph a line using the slope and y-intercept when in slope-intercept form.
Students graph a linear equation and compute the x- and y- intercepts (e.g., graph 2x + 6y = 4). They are also able to sketch the region defined by linear inequality (e.g., they sketch the region defined by 2x + 6y < 4).
5.5A
• Slope-Intercept Form
Notes
y is by itself on the left.y mx b What do you notice?
x comes first on the right.m
b
slope
intercepty Find the slope and y-intercept.
3 5y x Ex.
Rewrite the Slope-Intercept
Formula!y mx b
3m5b3
5
m
b
14
2y x
Ex.
Rewrite the Slope-Intercept
Formula!y mx b
1
2m
4b
1
24
m
b
410
3y x
Ex.
y m x b 4
3m
10b
4
310
m
b
Now you try.
NotesFind the slope and y-intercept.
6y x Ex.
Rewrite the Slope-Intercept
Formula!
y m x b 1m
6b1
6
m
b
Make it look like slope-intercept form!1 6y x
3y xEx.
Rewrite the Slope-Intercept
Formula!
y mx b 3m0b3
0
m
b
Make it look like slope-intercept form!3 0y x
Now you try.
17
2y x
Ex.y x
Ex.8y
Ex.
1, 7
2m b 1, 0m b 0, 8m b
0 8y x 1 0y x
7y Ex.
y mx b 0m7b0
7
m
b
0 7y x
NotesWrite in slope-intercept form
3
5
m
b
Ex.
y x 3 53 5y x
y mx b
Now you try.
1slope
2int 13y
Ex.
y x
1
213
113
2y x
y mx b
4
3int 0
m
y
Ex.
y x
4
3 0
4
3y x
y mx b
• Rules for Graphing by Slope-Intercept Form
Notes
2. Find the slope (m) and y-intercept (b).
3. Plot the y-intercept.• b = beginning
4. Plot more points by using the slope.• m = move
5. Make a line by connecting the dots.
1. Put in slope-intercept form.
Notes
21
3y x
Ex.
2
3m
1b
Graph.
2) Find m and b.
3) Plot the y-intercept.
4) Plot more points by using the slope.
5) Make a line by connecting the dots.
1) Put in slope-intercept form.
b = beginning
m = move2
3
risem
run
2
3
Notes
32
2y x Ex.
3
2m
2b
Graph.
2) Find m and b.
3) Plot the y-intercept.
4) Plot more points by using the slope.
5) Make a line by connecting the dots.
1) Put in slope-intercept form.
b = beginning
m = move
3
2
risem
run
3
2
Notes
3 4y x Ex.
3m4b
Graph.
2) Find m and b.
3) Plot the y-intercept.
4) Plot more points by using the slope.
5) Make a line by connecting the dots.
1) Put in slope-intercept form.
b = beginning
m = move3
1
risem
run
3
1
Notes
4 1y x Ex.
4m1b
Graph.
2) Find m and b.
3) Plot the y-intercept.
4) Plot more points by using the slope.
5) Make a line by connecting the dots.
1) Put in slope-intercept form.
b = beginning
m = move
4
1
risem
run
4
1
Now you try.
Summary
To graph a line first make sure the equation is in _____-intercept form. Now find your slope and __-intercept. Begin with your y-intercept and then move according to your _____. Plot multiple points and ______ the line.
slopey
slopegraph
Today’s Homework
1. Pencil ONLY.2. Must show all of your work.
• NO WORK = NO CREDIT3. Must attempt EVERY problem.4. Always check your answers.
Rules for Homework
Homework 5.5A
1. 2 5y x Find the slope and y-intercept.
42. 1
3y x
3. 7y x 4. 9y
Write in slope-intercept form5. 4, 10m b 3
6. , 45
m b
Graph. 2
7. 13
y x 1
8. 32
y x 4
9. 43
y x
10. 3 6y x 11. 2 3y x 12. 5y x
313.
2y x 14. y x 15. 2y
Complete the Ticket Out the Door without talking!!!!!
Talking = time after the bell!
Ticket Out the Door
Put your NAME on the paper.
When finished, turn your paper face DOWN.Graph.
54
2y x