Question 1

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

Accepted Answer

$4x^3+ - 8x+7$

Answer

$4x^6+x^4+8x+7$

Answer

$4x^3+2x^2+8x+7$

Question 2

Find the inverse of the following function:         $f(x) = 2x - 7$

Accepted Answer

$\frac{1}{2}x+\frac{7}{2}$

Answer

3x+7

Answer

$\frac{7x}{2}$

Answer

x/2 + 7

Question 3

Solve the equation for d: $C = 3d^2$

Accepted Answer

$d=\sqrt{\frac{C}{3}}$

Answer

$d=\frac{C}{3}$

Answer

$d=\frac{C^2}{3}$

Question 4

Find the vertex of the quadratic.

Accepted Answer

(3,4)

Answer

(4,3)

Answer

(0,7)

Answer

no real solutions

Question 5

What are the x-intercepts of the quadratic?

Accepted Answer

x = -3 and x = 2

Answer

x = -3

Answer

no real solutions

Answer

x = -2 and x = 3

Question 6

Sarah has a new job and the function for her income is $I(x) =8x + 275$ based on how many hours she works. What does the slope mean?

Accepted Answer

every hour she earns $8

Answer

money

Answer

nothing

Answer

her income after x hours

Question 7

Which equation show an equivalent form to $x^2+4x-32$

Accepted Answer

(x+8)(x-4)

Answer

(x - 8)(x+4)

Answer

$(x - 2)^2-32$

Answer

$(x+2)^2 - 36$

Question 8

Find the product: $(3x+2)(2x-1)$

Accepted Answer

$6x^2+x-2$

Answer

$6x^2+7x+2$

Answer

$5x^2+x+5$

Question 9

What is the range of the function$f(x) = 2x^2 + x - 4$ with a domain of $-2<x<3$

Accepted Answer

$2<y<17$

Answer

$2<x<17$

Answer

$-2<y<3$

Question 10

How would you change the graph of $y=x^2$ to $y = x^2-4$

Accepted Answer

vertical translation down

Answer

stretch

Answer

horizontal translation right

Answer

vertical translation up

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