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1. |
If g(x) = |x + 3|, find g(-7). |
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A. |
-4 |
B. |
10 |
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C. |
-7 |
D. |
4 |
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Hint |
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2. |
Use the substitution method to solve m - n = 7 and 3m + 2n = 6. |
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A. |
(4, -3) |
B. |
(-3, -10) |
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C. |
(-5, 2) |
D. |
 |
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Hint |
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3. |
Find  [6,3,-1]. |
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A. |
[3 3 -1] |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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4. |
If  , find N -1. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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5. |
Use synthetic division to find
(4x3 + 13x2 - 2x -15) ÷ (x + 3). |
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A. |
4x2 + x - 5 |
B. |
4x - 5 |
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C. |
x2 + x - 5 |
D. |
4x2 + x + 5 |
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Hint |
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6. |
Write the fourth root of 625. |
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A. |
 |
B. |
4(625) |
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C. |
6254 |
D. |
5 |
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Hint |
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7. |
Express  using exponents. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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8. |
Evaluate  |
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A. |
 |
B. |
 |
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C. |
4 |
D. |
3 |
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Hint |
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9. |
What is the conjugate of 12 - 4i? |
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A. |
12 |
B. |
12 + 4i |
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C. |
 |
D. |
-4i |
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Hint |
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10. |
Name the property illustrated by the equation 5 ·? (-2 – 7) = 5 ·? -2 – 5 ·? 7. |
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A. |
Distributive Property |
B. |
Inverse Property |
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C. |
Associative Property |
D. |
Commutative Property |
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Hint |
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11. |
Identify the multiplicative inverse of 2.5. |
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A. |
0.25 |
B. |
5.2 |
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C. |
0.5 |
D. |
0.4 |
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Hint |
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12. |
Solve 6z > 39. |
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A. |
 |
B. |
{z | z > 234} |
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C. |
 |
D. |
{z | z < 234} |
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Hint |
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13. |
Write the equation of the line through (5, -3) and (-2, -8) in slope-intercept form. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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14. |
For which scatter plot will a good line of fit have a negative y-intercept? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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15. |
Suppose a plant grows one inch every year. If x is how old the plant is (in years), and f (x) is how tall the plant is (in inches), what type of function is f (x)? |
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A. |
step function |
B. |
constant function |
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C. |
identity function |
D. |
absolute value function |
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Hint |
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16. |
Graph the inequality y  -| x | + 3. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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17. |
Which of the following is true concerning matrix multiplication of three matrices A, B, and C? |
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A. |
C(A + B) = CA + CB |
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B. |
AB = BA for no cases |
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C. |
(A + B)C = CA + CB |
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D. |
AB = BA for all cases |
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Hint |
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18. |
Vince and Brian each need two kinds of items at the store. Vince bought 10 of item A and 14 of item B, and spent $97. Brian bought 8 of item A and 25 of item B, and spent $119. How much did each item cost? |
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A. |
item A = $3
item B = $5.50 |
B. |
item A = $2.10
item B = $1.14 |
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C. |
item A = $5.50
item B = $3 |
D. |
item A = $1.14
item B = $2.10 |
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Hint |
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19. |
Simplify:  |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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20. |
Evaluate  |
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A. |
9 |
B. |
27 |
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C. |
81 |
D. |
486 |
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Hint |
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