
Transforming Graphs
Presentation
•
Mathematics
•
10th - 12th Grade
•
Hard
Joseph Anderson
FREE Resource
14 Slides • 20 Questions
1
translation, stretching and reflection
2
instruction
Mathematics | Transformation of graphs
3
instruction
Mathematics | Transformation of graphs
4
instruction
After inputting the f(x), it will be our original function.
Move the sliders to apply any changes.
We firstly change the values of h and k only.
Observe clearly the "transformation" applied on the original curve.
Mathematics | Transformation of graphs
5
instruction
You may play with the applet for a while and answer the question afterwards.
Mathematics | Transformation of graphs
6
​https://www.geogebra.org/m/xwbveh6y
7
8
Multiple Choice
Describe the transformation
f(x)+3
3 Units Up
3 Units Down
3 Units Left
3 Units Right
9
Multiple Choice
Describe the transformation
f(x−2)
2 Units Up
2 Units Down
2 Units Left
2 Units Right
10
Multiple Choice
Describe the transformation
f(x+5)
5 Units Up
5 Units Down
5 Units Left
5 Units Right
11
Multiple Choice
Describe the transformation
f(x)−6
6 Units Up
6 Units Down
6 Units Left
6 Units Right
12
instruction
If you answer the previous questions correctly, you may try to change the values of a or b then.
You are suggested to change only a or b at each time, and keep the other values as default.
-If we make a=3, keep b=1, h=0 and k=0. Or press reset before changes
Mathematics | Transformation of graphs
13
​https://www.geogebra.org/m/xwbveh6y
14
15
Multiple Choice
Describe the transformation
3h(x)
Vertically Stretched by a factor of 3
Vertically Stretched by a factor of 31
Horizontally Stretched by a factor of 3
Horizontally Stretched by a factor of 31
16
Multiple Choice
Describe the transformation
h(31x)
Vertically Stretched by a factor of 31
Vertically Stretched by a factor of 3
Horizontally Stretched by a factor of 31
Horizontally Stretched by a factor of 3
17
instruction
If you answer the previous questions correctly, you may try to change more than one variable at each time.
While you are playing with the applet, please be reminded to observe what have been changed and what is the order of the changes on f(x) to become g(x).
Mathematics | Transformation of graphs
18
​https://www.geogebra.org/m/xwbveh6y
19
20
Multiple Choice
Describe the transformations
−g(x)+2
Reflected in the x-axis
2 Units Up
Reflected in the x-axis
2 Units Down
Reflected in the y-axis
2 Units Up
Reflected in the y-axis
2 Units Down
21
Multiple Choice
Describe the transformations
g(−x)−4
Reflected in the x-axis
4 Units Left
Reflected in the x-axis
4 Units Down
Reflected in the y-axis
4 Units Left
Reflected in the y-axis
4 Units Down
22
Multiple Choice
Given the parent exponential function y=4x,
how would the graph change if the function were:
y=2(4)x-3+1?
Vertically stretched by a factor of 2, right 3, and up 1
Vertically stretched by a factor of 1/2, left 3 and down 1
Vertically stretched by a factor of 1/2, right 3, and down 1
Vertically stretched by a factor of 2, left 3, and up 1
23
Multiple Choice
24
Multiple Choice
compare with y=x , the graph of y=−−x+2−3 has been...
This graph has been reflected in the x-axis and y-axis, shifted to the left two units, and shifted down three units.
This graph has been reflected in the y-axis, shifted to the right by two units, and shifted down three units.
This graph has been reflected in the x-axis and y-axis, shifted to the left two units, and shifted up three units.
This graph has been reflected in the x-axis and y-axis, shifted to the right two units, and shifted down three units.
25
Multiple Choice
This is an absolute value function y=∣x∣ . It has been stretched vertically by a factor of eleven, shifted to the right by two units, and shifted up by four units.
y=∣11x+2∣−4
y=∣x∣
y=11∣x−2∣+4
y=11∣x+2∣+4
26
27
Multiple Choice
What transformation is f(x)+d
Vertical translation by d units up
Vertical ranslation by d units down
Horizontal translation by d units left
Horizontal translation by d units right
28
Multiple Choice
What transformation is f(x)-d
Vertical translation by d units up
Vertical translation by d units down
Horizontal translation by d units left
Horizontal translation by d units right
29
Multiple Choice
What transformation is f(x+c)
Translation in y direction by c units up
Translation in y direction by c units down
Translation in x direction by c units left
Translation in x direction by c units right
30
Multiple Choice
What transformation is f(x-c)
Translation in y direction by c units up
Translation in y direction by c units down
Translation in x direction by c units left
Translation in x direction by c units right
31
Multiple Choice
What transformation is -f(x)
Reflection in the
y-axis
Reflection in the
x- axis
Translation in y direction
Translation in x direction
32
Multiple Choice
What transformation is f(-x)
Reflection in the
y-axis
Reflection in the
x-axis
Translation in the y direction
Translation in the x direction
33
Multiple Choice
What transformation is af(x)
Stretch in y direction by scale factor a
Stretch in y direction by scale factor 1/a
Stretch in x direction by scale factor a
Stretch in x direction by scale factor 1/a
34
Multiple Choice
What transformation is f(bx)
Stretch in y direction by scale factor b
Stretch in y direction by scale factor 1/b
Stretch in x direction by scale factor b
Stretch in x direction by scale factor 1/b
translation, stretching and reflection
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