Absolute Value Functions Answers

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Which statement is true about f(x) = –6|x + 5| – 2?

A
The graph of f(x) is a horizontal compression of the graph of the parent function.
B
The graph of f(x) is a horizontal stretch of the graph of the parent function.
C
The graph of f(x) opens upward.
D
The graph of f(x) opens to the right.
2
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Given the function f(x) = 2|x + 6| – 4, for what values of x is f(x) = 6?

A
x = –1, x = 11
B
x = –1, x = –11
C
x = 14, x = –26
D
x = 26, x = –14
3

What are the domain and range of f(x) = 2|x – 4|?

A
domain: x 2; range:
Option A
B
domain: ; range: f(x) 0
Option B
C
domain: ; range: f(x) 0
Option C
D
domain: x 2; range:
Option D
4

Which of the following is the graph of translated 2 units right, 2 units up, and dilated by a factor of ?

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
5

Which of the following is the parent function of all absolute value functions?

A
f(x) = 3x
B
f(x) = |x|
C
f(x) = 2|x|
D
Option
Option D
6

Which of the following is the value of a when the function is written in the standard form of an absolute value function?

Question illustration
A
–1
B
–3
C
1
D
3
7

The standard form of an absolute value function is . Which of the following represents the vertex?

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
8

Which function has a vertex at (2, 6)?

A
f(x) = 2|x – 2| – 6
B
f(x) = 2|x – 2| + 6
C
f(x) = 2|x + 2| + 6
D
f(x) = 2|x + 2| – 6
9

What is the vertex of f(x) = |x + 8| – 3?

A
(–8, –3)
B
(–8, 3)
C
(8, –3)
D
(8, 3)
10

What is the range of the absolute value function below?

Question illustration
A
f(x) –4
Option A
B
f(x) –1
Option B
C
f(x) 1
Option C
D
f(x) 4
Option D

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