Question 1

To evaluate 16^3/2 find

Accepted Answer

the cube of 16 and then take the square root

Answer

the square of 16 and then take the cube root

Answer

the square root of 3 times the cube root of 16

Answer

the cube root of 16 and then take the square root

Question 2

A picture is 5 inches by 7 inches. There is a frame around the picture that is of uniform width. The area of the frame and the picture combined is 72 in^2. How wide is the picture frame? Write an equation that you would use to solve for x, the width of the picture frame.

Accepted Answer

(5 + 2x)(7 + 2x) = 72

Answer

(5 + x)(7 + x) = 72

Answer

(5 - 2x)(7 - 2x) = 72

Answer

(5 - x)(7 - x) = 72

Question 3

Write the expression in exponential  form.

Accepted Answer

x^1/2y^3/4z^1/4

Answer

x^6y^7z^4

Answer

x^1/2y^3/4z

Answer

x^2yz^4

Question 4

What is the x-coordinate at the point of intersection for these equations?
f(x) = 2.8x - 12
g(x) = 5.8x + 9

Accepted Answer

-7

Answer

-3

Answer

7

Answer

3

Question 5

Which describes the difference between the graph of f(x) = 4x^2 and g(x) = -8x^2?

Accepted Answer

The graph of g(x) is obtained by flipping f(x) over the x-axis and stretching vertically by a factor of 2.

Answer

The graph of f(x) is obtained by flipping g(x) over the y-axis and compressing vertically by a factor of 2.

Answer

The graph of g(x) is obtained by flipping f(x) over the y-axis and stretching vertically by a factor of 2.

Answer

The graph of g(x) is obtained by flipping f(x) over the x-axis and compressing vertically by a factor of 2.

Question 6

Where is the function decreasing?

Accepted Answer

-2 < x < 0.5

Answer

-∞ < x < 0.5

Answer

-2 ≤ x < 0.5

Answer

1.75 < x < ∞

Question 7

If a is a rational number and b is an irrational number, then the sum a + b is

Accepted Answer

Irrational

Answer

Rational

Answer

An integer

Answer

Imaginary

Question 8

Which graph matches the equation y = -(x+2)^2 ?

Accepted Answer

A

Answer

C

Answer

D

Answer

B

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