Question 1

Which function represents the graph?

Accepted Answer

$f(x)=-x^2+6x-3$

Answer

$f(x)=(x-3)^2+6$

Answer

$f(x)= -(x+3)^2+6$

Answer

$f(x)=x^2-6x+3$

Question 2

Which is the graph of $f(x)=x^2+x-6$

Accepted Answer

Red

Answer

Blue

Answer

Green

Answer

Black

Question 3

What is the inverse of $f(x)=3(x+1)^2+6$

Accepted Answer

$f(x)^{-1}=\pm\sqrt{\frac{x-6}{3}}-1$

Answer

$f(x)^{-1}=1-\frac{x-6}{3}$

Answer

$f(x)^{-1}=\frac{x-6}{3}-1$

Answer

$f(x)^{-1}=\pm\sqrt{\frac{x+6}{3}}+1$

Question 4

Solve $A=4\pi r^2$ for r

Accepted Answer

$r =\pm \sqrt\frac{A}{4\pi}$

Answer

$r=\frac{4\pi}{A}$

Answer

$r=\frac{A}{4\pi}$

Answer

$r = \pm\sqrt\frac{4\pi}{A}$

Question 5

Solve $A=\frac{\pi r^2S}{360}$ for $r$

Accepted Answer

$r=\sqrt{\frac{360A}{\pi S}}$

Answer

$r=\sqrt{\pi S-360A}$

Answer

$r=\sqrt{360A-S\pi}$

Answer

$r=\sqrt{\frac{\pi S}{360A}}$

Question 6

Which is NOT an equivalent form of $2x^2-x-15$

Accepted Answer

$(x+5)(2x-3)$

Answer

$2(x-0.2)^2-15.125$

Answer

$(x-3)(2x+5)$

Question 7

Find the average rage of change of $3x^2+2x-4$ from $x=1$ to $x=2$

Accepted Answer

12

Answer

$\frac{1}{6}$

Answer

6

Answer

$\frac{1}{12}$

Question 8

Find the average rate of change of $-x^2+6x-5$ from $x=2$ to $x=3$

Accepted Answer

1

Answer

3

Answer

4

Answer

$\frac{4}{3}$

Question 9

Find a solution to the system:$\begin{matrix}f(x) = -2x + 1\g(x) = 3x^2+4x + 2\end{matrix}$

Accepted Answer

$(-1.816, 4.633)$

Answer

No real solutions

Answer

$(1.367, -0.184)$

Answer

$(-0.667,0.667)$

Question 10

Solve $f(x)=-3(x-4)^2+2$

Accepted Answer

$x=3.184$ and$x=4.816$

Answer

No real solutions

Answer

$x= 4$ and $x=2$

Answer

$x=4.667$ and $x=-4.667$

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