AnswersMathematics III AModeling with Quadratic Equations

The Cube Root Function Answers

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On the coordinate grid, the graph of is shown. It is a reflection and translation of .

Question illustration
A
{x |-2 < x < 2}
B
{y |-2 < y < 2}
C
{x | x is a real number}
D
{y | y is a real number}
3

The function f(x) = is reflected over the x-axis to create the graph of g(x) = .Which is the graph of g(x)?

Question illustration
A
On a coordinate plane, a cube root function goes through (negative 2, negative 8), has an inflection point at (0, 0), and goes through (2, 8).
Option A
B
On a coordinate plane, a cube root function goes through (negative 2, 8), has an inflection point at (0, 0), and goes through (2, negative 8).
Option B
C
On a coordinate plane, a cube root function goes through (negative 8, 2), has an inflection point at (0, 0), and goes through (8, negative 2).
Option C
D
On a coordinate plane, a cube root function goes through (negative 8, negative 2), has an inflection point at (0, 0), and goes thorugh (8, 2).
Option D
5

On the coordinate grid, the graph of is shown. It is a translation of .

Question illustration
A
{x | 1 < x < 5}
B
{y | 1 < y < 5}
C
{x | x is a real number}
D
{y | y is a real number}
6

Which is the graph of y = ?

Question illustration
A
On a coordinate plane, a cube root function goes through (negative 6, 2), has an inflection point at (2, 0), and goes through (10, negative 2).
Option A
B
On a coordinate plane, a cube root function goes through (negative 8, 0), has an inflection point at (0, negative 2), and goes through (8, negative 4).
Option B
C
On a coordinate plane, a cube root function goes through (negative 8, 0), has an inflection point at (0, 2), and goes through (8, 4).
Option C
D
On a coordinate plane, a cube root function goes through (negative 10, negative 2), has an inflection point at (negative 2, 0), and goes through (6, 2).
Option D
7

The graph shows the function g(x) for a restricted domain.

Question illustration
A
g(x) = ; x –4
Option A
B
g(x) = ; x 0
Option B
C
g(x) = ; x –4
Option C
D
g(x) = ; x 0
Option D
8

The graph of is shown.

Question illustration
A
The function is only increasing when x ≥ −8.
B
The function is only increasing when x ≥ 0.
C
The function is always decreasing.
D
The function is always increasing.
9

Which is the graph of the cube root function f(x) = ?

Question illustration
A
On a coordinate plane, a cube root function goes through (negative 8, 2), has an inflection point at (0, 0), and goes through (8, negative 2).
Option A
B
On a coordinate plane, a cube root function goes through (negative 8, negative 2), has an inflection point at (0, 0), and goes thorugh (8, 2).
Option B
C
On a coordinate plane, a cube root function goes through (negative 4, negative 2), has an inflection point at (0, 0), and goes thorugh (4, 2).
Option C
D
On a coordinate plane, a cube root function goes through (negative 4, 2), has an inflection point at (0, 0), and goes through (4, negative 2).
Option D
10

The graph of g(x) is a reflection and translation of .

Question illustration
A
g (x) = RootIndex 3 StartRoot x + 1 EndRoot
Option A
B
g (x) = RootIndex 3 StartRoot x minus 1 EndRoot
Option B
C
g (x) = Negative RootIndex 3 StartRoot x + 1 EndRoot
Option C
D
g (x) = Negative RootIndex 3 StartRoot x minus 1 EndRoot
Option D

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