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1. |
Find the value of  |
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A. |
14 |
B. |
-56 |
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C. |
5 |
D. |
-14 |
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Hint |
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2. |
The values in the graph below are _______ |
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 |
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A. |
rational numbers. |
B. |
integers. |
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C. |
irrational numbers. |
D. |
natural numbers. |
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Hint |
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3. |
Solve  |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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4. |
Which equation is graphed below? |
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 |
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A. |
3x - y = -6 |
B. |
x + 3y = 6 |
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C. |
3x + y = 6 |
D. |
x - 3y = -6 |
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Hint |
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5. |
Which equation describes graph A? |
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 |
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A. |
y = | 2.25x | |
B. |
y = 2.25| x | - 1 |
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C. |
y = | x - 1 | |
D. |
y = 2.25x - 1 |
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Hint |
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6. |
Which coordinates are not of the vertices of the feasible region for the system of inequalities? 
|
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A. |
(0, 6) |
B. |
(5, 1) |
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C. |
(2, 4) |
D. |
(5, 4) |
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Hint |
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7. |
Simplify  |
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A. |
x + 7 |
B. |
x2 + 7 |
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C. |
x + 4 |
D. |
x - 4 |
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Hint |
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8. |
What is the graph of  ? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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9. |
If  and  , find the approximate value of log2 15. |
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A. |
3.9069 |
B. |
3.6802 |
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C. |
1.4649 |
D. |
0.7369 |
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Hint |
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10. |
Simplify  . |
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A. |
n + 1 |
B. |
 |
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C. |
n + 1 |
D. |
n |
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Hint |
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11. |
A scatter plot is __________. |
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A. |
a line graphed in a portion of Quadrant I of the coordinate plane |
B. |
a table of data |
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C. |
a line graph |
D. |
a set of data graphed as ordered pairs in a coordinate plane |
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Hint |
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12. |
What is always true of an n × n matrix? |
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A. |
It has at least two rows and two columns. |
B. |
It is a square matrix. |
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C. |
It is a row matrix. |
D. |
It is a column matrix. |
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Hint |
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13. |
Which of the following is true concerning matrix multiplication of three matrices A, B, and C? |
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A. |
(A + B)C = CA + CB |
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B. |
AB = BA for all cases |
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C. |
AB = BA for no cases |
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D. |
C(A + B) = CA + CB |
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Hint |
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14. |
In the inequality  what must q be greater than or equal to? |
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A. |
21 |
B. |
9 |
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C. |
0 |
D. |
5 |
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Hint |
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15. |
The volume of a refrigerator is  . Its height is x + 2. What are the other two dimensions? |
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A. |
x – 2 and x + 3 |
B. |
x – 6 and x + 1 |
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C. |
x – 3 and x + 2 |
D. |
x + 6 and x – 1 |
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Hint |
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16. |
How many possible real zeros are there for the polynomial  ? |
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A. |
6 |
B. |
4 |
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C. |
0 |
D. |
2 |
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Hint |
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17. |
Simplify  . |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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18. |
What is the LCM of  and  . |
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A. |
(r – 1)2(r + 3)(r + 9) |
B. |
r(r – 1)(r + 3)(r + 9) |
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C. |
(r – 1)(r + 3)(r + 9) |
D. |
r(r – 1)2(r + 3)(r + 9) |
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Hint |
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19. |
Write  as a fraction. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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20. |
In a survey of 100 people, 65 liked the color blue, and 45 liked the color green. If 20 people disliked both green and blue, how many people liked both? |
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A. |
10 |
B. |
65 |
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C. |
15 |
D. |
30 |
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Hint |
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