Answers26-27 AISD - Algebra 2A-IC HallReflections and Dilations of Absolute Value Functions

Reflections and Dilations of Absolute Value Functions — Unit test Answers

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1
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The solid graph is a translation of .

Question illustration
A
2 units up
B
2 units down
C
2 units left
D
2 units right
2
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Which graph represents the function p(x) = |x – 1|?

A
Option
B
Option
C
Option
D
Option
3

Which graph represents the function f(x) = |x| – 4?

A
On a coordinate plane, an absolute value graph has a vertex at (0, 4).
Option A
B
On a coordinate plane, an absolute value graph has a vertex at (negative 4, 0).
Option B
C
On a coordinate plane, an absolute value graph has a vertex at (0, negative 4).
Option C
D
On a coordinate plane, an absolute value graph has a vertex at (4, 0).
Option D
4

Question text not available

Question illustration
A
–1
B
Option
Option B
C
1
D
4
5

Which describes how to graph by transforming the parent function?

Question illustration
A
Translate the parent function 5 units to the left and 7 units up.
B
Translate the parent function 5 units to the right and 7 units up.
C
Translate the parent function 5 units down and 7 units to the right.
D
Translate the parent function 5 units up and 7 units to the right.
6

The graph of the step function g(x) = –⌊x⌋ + 3 is shown.

Question illustration
A
{x| x is a real number}
B
{x| x is an integer}
C
{x| –2 ≤ x < 5}
D
{x| –1 ≤ x ≤ 5}
7

Which graph represents the function f(x) = 4|x|?

A
Option
B
Option
C
Option
D
Option
8

A hotel offers a reward program based on the number of nights stayed. The function f(x) represents the number of free nights earned as a function of x, the number of nights stayed.f(x) = Which describes the meaning of f(x)?

Question illustration
A
A customer earns 1 free night per 10 nights stayed.
B
A customer starts with 1 free night and then earns another free night after every 10 nights stayed.
C
A customer earns x – 10 free nights for every 10 nights stayed.
D
A customer earns 10 free nights after x number of nights stayed.
9

The factor tree for 3,025 is shown.

Question illustration
A
16
B
55
C
52(112)
D
52+(112)
10

What is the simplified form of ?

Question illustration
A
200
Option A
B
200
Option B
C
20
Option C
D
20
Option D
11

The function f(x) is to be graphed on a coordinate plane.f(x) = At what point should an open circle be drawn?

Question illustration
A
(–1, 0)
B
(0, 0)
C
(0, 1)
D
(1, 0)
12

The graph of a function is shown.

Question illustration
A
f(x) =
Option A
B
f(x) =
Option B
C
f(x) =
Option C
D
f(x) =
Option D
13

A piecewise function is represented by the graph below.

Question illustration
A
x < –1
B
–1 ≤ x ≤ 1
C
1 ≤ x < 2
D
x > 1
14

A function, h(x), is defined as shown.h(x) = Which graph represents h(x)?

Question illustration
A
Option
B
Option
C
Option
D
Option
15

Which represents the reflection of f(x) = over the y-axis?

Question illustration
A
A 2-column table has 4 rows. The first column is labeled x with entries negative 1, 0, 1, 4. The second column is labeled f (x) with entries undefined, 0, 1, 2.
Option A
B
A 2-column table has 4 rows. The first column is labeled x with entries negative 1, 0, 1, 4. The second column is labeled f (x) with entries undefined, 0, negative 1, negative 2.
Option B
C
On a coordinate plane, an absolute value graph starts at (0, 0) and goes to the left through (negative 4, 2).
Option C
D
On a coordinate plane, an absolute value graph starts at (0, 0) and goes up and to the left through (negative 2, 4).
Option D
16

Question text not available

Question illustration
A
all real numbers
B
all real numbers less than or equal to 3
C
all real numbers less than or equal to –3
D
all real numbers greater than or equal to –3
17

The step function f(x) is graphed.

Question illustration
A
0
B
1
C
2
D
4
18

Question text not available

Question illustration
A
f(x) = −2|x| + 1
B
f(x) = |x| + 1
Option B
C
f(x) = -2|x + 1|
D
f(x) = |x + 1|
Option D
19

The graph of the cube root parent function y = is translated to form f(x) shown on the graph.

Question illustration
A
f(x) =
Option A
B
f(x) =
Option B
C
f(x) =
Option C
D
f(x) =
Option D
20

What is the simplified form of ?

Question illustration
A
5000
Option A
B
5000
Option B
C
100
Option C
D
100
Option D

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