parabolas day 1 2/cha… · 53 day 1 transforming parabolas 2010 1 november 17, 2010 nov 157:33 pm...
TRANSCRIPT
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53 Day 1 Transforming Parabolas 2010
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November 17, 2010
Nov 157:33 PM
Objectives: Use the vertex form of a quadratic function to:
graph quadratic functions andwrite the equations of quadratic functions from graphs.
5.3 Parabolas Day 1ing
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53 Day 1 Transforming Parabolas 2010
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November 17, 2010
Nov 158:36 PM
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53 Day 1 Transforming Parabolas 2010
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November 17, 2010
Jun 2 8:52 AM
* equation in vertex form f(x) = a(x h)2 + k* the graph looks like a "U" * a impacts the size
Quadratic Functions
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53 Day 1 Transforming Parabolas 2010
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November 17, 2010
Jun 2 8:52 AM
* equation in vertex form f(x) = a(x h)2 + k* the graph looks like a "U" * a impacts the size
* a>1 makes the graph more narrow* 0
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53 Day 1 Transforming Parabolas 2010
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November 17, 2010
Jun 2 8:52 AM
Quadratic Functions* equation in vertex form f(x) = a(x h)2 + k* the graph looks like a "U" * a impacts the size
* a>1 makes the graph more narrow* 0
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53 Day 1 Transforming Parabolas 2010
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November 17, 2010
Jun 2 10:27 AM
What do changes in "a", "h" & "k" look like when you graph a quadratic function?
Open att
achments
&
play slide
r!!
* equation in vertex form f(x) = a(x - h)2 + kQuadratic Functions
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53 Day 1 Transforming Parabolas 2010
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November 17, 2010
Nov 1510:02 PM
How do you find points on the graph with different values of a?Graph the Quadratic Parent Function: y = x2
Rewritten: y = 1(x 0)2 + 0
Vertex: (0, 0)Axis of Symmetry: x = 0
Table of values to graph:x y
Graph: y = 2x2 (on the same graph)What changes are caused by a = 2?
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53 Day 1 Transforming Parabolas 2010
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November 17, 2010
Nov 158:39 PM
How else could you find points on the graph?
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53 Day 1 Transforming Parabolas 2010
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November 17, 2010
Jun 2 9:10 AM
Graph each quadratic function & find the domain and range:
1. f(x) = (x + 4)2 - 2 2. f(x) = (x - 2)2 - 3 3. f(x) = - (x - 1)2 + 2
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D:R:
D:R:
D:R:
Graphs are hiding!!!
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53 Day 1 Transforming Parabolas 2010
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November 17, 2010
Jun 2 9:10 AM
Graphs are hiding!!!
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4- 2- 4 2
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1. f(x) = -(x + 3)2 + 1 2. f(x) = 4(x + 2)2 - 3 3. f(x)= - 1/2(x - 1)2 + 4
Graph each quadratic function & find the domain and range:
D:R:
D:R:
D:R:
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53 Day 1 Transforming Parabolas 2010
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November 17, 2010
Nov 158:40 PM
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53 Day 1 Transforming Parabolas 2010
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November 17, 2010
Nov 158:41 PM
y = 2(x + 1)2
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53 Day 1 Transforming Parabolas 2010
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November 17, 2010
Jun 2 10:05 AM
DO U UNDERSTAND??
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Homework:page 255 (2 - 10, 13 - 20, 24 - 26, 43 - 45, 76, 77)
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Attachments
Quadratic slider.gsp
SMART Notebook
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