Question 1

Find the difference:$ (3x^3 + x^2 - 5x + 4) - (2x^3 - x^2 - 5x +3)$

Accepted Answer

$x^3+ 2x^2+1$

Answer

$x^3+1$

Answer

$5x^3+2x^2+1$

Question 2

Find the inverse of the following function:         $f(x) = 4x+1$

Accepted Answer

$\frac{1}{4}x-\frac{1}{4}$

Answer

4x-1

Answer

$\frac{1x}{4}$

Answer

x/4 - 1

Question 3

$\sqrt{20}$

Accepted Answer

2$\sqrt{5}$

Answer

5$\sqrt{4}$

Answer

5$\sqrt{2}$

Answer

4$\sqrt{5}$

Question 4

Which function represents the graph?

Accepted Answer

$2x^2-x+1$

Answer

$x^2+3x - 5$

Answer

$-x^2-x-4$

Question 5

Given the function $f(x) = 3x^2-x+2$. Find the rate of change from x = 1 to x = 2.

Accepted Answer

8

Answer

2

Answer

4

Answer

3

Question 6

An object is launched and the function $f(x) = -4.9x^2+ 35x + 4$ represents the launch in meters after x seconds. What is the maximum height the object reached?

Accepted Answer

66.5 meters

Answer

4 meters

Answer

3.6 meters

Answer

100 meters

Question 7

Which equation show an equivalent form to $f(x) = (x-3)^2+1$

Accepted Answer

$x^2 - 6x + 10$

Answer

(x - 3)(x-3)

Answer

(x-4)(x-2)

Answer

$x^2 - 6x + 9$

Question 8

What transformation changes the graph of $f(x) = x^2$ to the graph shown?

Accepted Answer

reflection

Answer

stretch

Answer

vertical translation

Answer

horizontal translation

Question 9

Simplify: $64^\frac{2}{3}$

Accepted Answer

16

Answer

8

Answer

4

Answer

not possible

Question 10

Find the axis of symmetry and the vertex of the quadratic function $f(x) = 2x^2-x - 2$

Accepted Answer

axis: x = .25 and vertex (.25,-2.125)

Answer

axis: x = 1 and vertex (1.5, 3.25)

Answer

axis: x = -2.125 and vertex (.25,-2.125)

Answer

axis: x = 1.28 and vertex (-.781,0)

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