Graphing Radical Functions Answers

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1
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Describe the transformation of the graph of the parent function y = √x for the function y = √x + 7 + 5.

Answers:
The graph is shifted 7 units and 5 units .:left
The graph is shifted 7 units and 5 units .:up
2
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leftright✔ updown

A
left
B
right
C
✔ up
D
down
3

What is the domain of

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A
Option
Option A
B
Option
Option B
C
Option
Option C
D
all real numbers
Option D
5

What is the range of

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
all real numbers
Option D
6

Which of the following describes the graph of the transformed function compared with the parent function? Select all that apply.

A
reflected over the x-axis
B
translated 2 units left
C
translated 2 units right
D
compressed by a factor of 0.4
E
stretched by a factor of 0.4
F
translated 2 units up
G
translated 2 units down
7

The domain of is all real numbers.x >= -5.x >= -1.x >= 1.✔ x >= 5.

Question illustration
A
all real numbers.
B
x >= -5.
C
x >= -1.
D
x >= 1.
E
✔ x >= 5.
9

Which of the following graphs are identical?

A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
E
Option
Option E
F
Option
Option F
11

Describe the transformation of the graph of the parent function y = √x for the function y = √x + 7 + 5.

Answers:
The graph is shifted 7 units and 5 units .:left
The graph is shifted 7 units and 5 units .:up
13

Explain how to rewrite the function shown in order to determine the transformation of the parent function. Then, describe the transformation of the graph compared to the parent function.

Question illustration
Answer:

To determine the transformation of the parent function, first rewrite the given function by factoring − 8 −8 from the radicand. Taking the cube root of − 8 −8 allows you to place − 2 −2 in front of the radical symbol, which makes it easier to see the transformations. Compared to the parent cube root function, the graph is reflected over both the x-axis and the y-axis due to the negative factors. It is also vertically stretched by a factor of 2, making it steeper than the parent function. Finally, the graph is translated 1 2 2 1 ​ unit to the left, shifting it slightly along the x-axis. This rewritten form allows you to clearly identify all the transformations applied to the parent function

14

Reread your description. Did it include the following?

A
Rewrite the equation by factoring –8 from the radicand and taking the cube root to get –2 in front of the radical symbol.
B
The graph is reflected over the x-axis.
C
The graph is also reflected over the y-axis.
D
The graph is vertically stretched by a factor of 2.
E
The graph is translated ½ unit to the left.
15

The range of is all real numbers.y >= -5.✔ y >= -1.y >= 1.y >= 5.

Question illustration
A
all real numbers.
B
y >= -5.
C
✔ y >= -1.
D
y >= 1.
E
y >= 5.
16

The graph is not reflected.✔ reflected over the x-axis.reflected over the y-axis.

A
not reflected.
B
✔ reflected over the x-axis.
C
reflected over the y-axis.
20

Which is the graph of

Question illustration
A
graph A
B
graph B
C
graph C
D
graph D

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