Question 1

What is equivalent to $5x^3(2x^2 + 4x - 6)$

Accepted Answer

$10x^5 + 20x^4 - 30x^3$

Answer

$7x^5 + 9x^4 - 11x^3$

Answer

$10x^6 + 20x^3 - 30$

Answer

$7x^6 + 9x^3 -11$

Question 2

simplify the following: $\sqrt{50x^3y^4}$

Accepted Answer

5$xy^2\sqrt{2x}$

Answer

25$\sqrt{2x^3y^4}$

Answer

5$x^2y^4\sqrt{2x}$

Answer

25$xy^2\sqrt{2x}$

Question 3

A computer chip has two pins on one side.  One pin is 4.0 x $10^{-3}$ and the other is 2.5 x $10^{-3}$ inches long.  What is the difference in the lengths of the two pins?

Accepted Answer

1.5 x $10^{-3}$

Answer

6.5 x $10^9$

Answer

6.5 x $10^{-3}$

Answer

1.5 x $10^{-6}$

Question 4

Which represents the complete factorization of $3v^2 + 9v$

Accepted Answer

$3v(v+3)$

Answer

$3v^2(1 + 3v)$

Answer

$v(3v+9)$

Answer

$3(v^2 + 3v)$

Question 5

The function $f(x) = 35 + 15x$ represents the amount of money, in dollars, Mr. Lewis earns for working $x$ hours.  If he works 25 hours, how much will he make?

Accepted Answer

$410

Answer

$375

Answer

$60

Answer

$1250

Question 6

What equation represents the relationship between time and distance?

Accepted Answer

d = 45t

Answer

d = t + 45

Answer

t = $\frac{45}{t}$

Answer

t = 45d

Question 7

What is the domain for the above set of data?

Accepted Answer

{-5, -2, 0, 3, 6}

Answer

{-23, -14, -8, -5, -2, 0, 1, 3, 6, 10}

Answer

{(-5, -23), (-2, -14), (0, -8), (3, 1), (6, 10)}

Answer

{-23, -14, -8, 1, 10}

Question 8

Which of the following sets of ordered pairs is a function?

Accepted Answer

{(3, 4), (4, 5), (0, 6), (9, 0)}

Answer

{(2, 3), (2, 7), (3, 5), (9, 10)}

Answer

{(0, 4), (1, 10), (2, 20), (1, 30)}

Answer

{(1, 2), (1, 3), (1, 4), (1, 5)}

Question 9

what is $g(2)$ for $g(x) = \frac{1}{2}x^3 +2x$

Accepted Answer

8

Answer

12

Answer

5

Answer

7

Question 10

what is the domain of the graph?

Accepted Answer

$-5\le x\le3$

Answer

$-5\le y\le3$

Answer

$-2\le x\le 6$

Answer

$-2\le y\le 6$

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