Vertical stretch and shrink of the radical function.

1. Vertical Stretch & Shrink September 15, 2014
Lesson 3 -
More Transformations of the Square Root Function
y = x2 y = x
Inverses
Parent Function & its Graph
y = x
Puullll
x y
0
0
1
1
4
2
9
3
16
4
T
A
B
L
E

2. Vertical Stretch & Shrink September 15, 2014
Match the equation with its graph:
Explain how you decided to match the equation with
the appropriate graph
y=3 x
y= 1 x
2
y = x y = x

3. Vertical Stretch & Shrink September 15, 2014
use as many as you need GRAPH THE PARENT FUNCTION FIRST!
1.
use as many as you need GRAPH THE PARENT FUNCTION FIRST!
2.

4. Vertical Stretch & Shrink September 15, 2014
What happens when there is a negative (or opposite)
sign in front of the square root?
y = x
y = - x
Match each description with an equation, then match to the graph
Horizontal shift Right
Horizontal Shift Left
Vertical Shift Up
Vertical Shift Down
Skinnier/Narrower
Wider/Flatter
y = 1
4
x y = x +3
y = x -1
y = x-1
y = x+3
y = 5 x

5. Vertical Stretch & Shrink September 15, 2014
In your group, fold your paper into 4 sections.
Person 1 - Draw an x and y axis
Person 2 - Draw the square root parent function
Person 3 - Draw the transformed graph you were
given
In the top right section:
Person 4 - Describe the transformation
In the bottom left section:
Person 1 and 2 - write the Domain
In the bottom right section
Person 3 and 4 - write the Range
In the top left section: