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1. |
When two lines have different slopes, the graphs of the equations are _________ |
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A. |
intersecting lines. |
B. |
the same line. |
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C. |
horizontal lines. |
D. |
parallel lines. |
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Hint |
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2. |
What is the degree of 42x5y2z? |
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A. |
7 |
B. |
2 |
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C. |
8 |
D. |
5 |
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Hint |
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3. |
Simplify  |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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4. |
Solve  . |
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A. |
1 |
B. |
-3, -1 |
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C. |
-3, 1 |
D. |
0, 1 |
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Hint |
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5. |
Solve 32x -1 = 25.6 to three decimal places. |
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A. |
0.739 |
B. |
4.767 |
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C. |
1.204 |
D. |
1.976 |
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Hint |
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6. |
Identify a1 in a geometric series for which S8 = 42.5 and r = -0.5. |
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A. |
64 |
B. |
63.75 |
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C. |
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D. |
1.5 |
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Hint |
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7. |
Rewrite (sin2 x + cos2 x) ÷ tan x as an expression involving only cot x. |
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A. |
1 cot x |
B. |
2 cot x |
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C. |
cot x |
D. |
cot2x |
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Hint |
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8. |
2 cot x sin2x is equivalent to ________. |
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A. |
cos  |
B. |
cos2x + sin x |
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C. |
sin 2x |
D. |
1 + sin2x |
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Hint |
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9. |
Is the relation shown in the graph a function? Why or why not? |
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A. |
Yes, the ordered pairs (-3, 2), (-1, 1), and (3, -1) form a straight line. |
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B. |
Yes, the relation contains very few ordered pairs. |
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C. |
No, the relation contains the ordered pairs (3, -1) and (3, 2). |
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D. |
No, the relation contains the ordered pairs (0, -1) and (3, -1). |
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Hint |
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10. |
Which of the following is prime? |
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A. |
3xy + 13x2 |
B. |
7x2 y2 |
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C. |
3x2 6y |
D. |
5xy>2 + 10y |
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Hint |
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11. |
Simplify  |
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A. |
 |
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B. |
 |
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C. |
 |
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D. |
 |
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Hint |
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12. |
What is the inverse of the relation (3, -1), (2, 5), (-4, -4)? |
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A. |
(1, -3), (-5, -2), (4, 4) |
B. |
(-3, -1), (-2, 5), (4, -4) |
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C. |
(-1, 3), (5, 2), (-4, -4) |
D. |
(-1, 3), (5, 2), (4, 4) |
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Hint |
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13. |
What are the equations of the asymptotes of  ? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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14. |
Which of the following represents exponential decay? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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15. |
Solve 62x > 5x + 2. |
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A. |
x > 0.85 |
B. |
x > 1.82 |
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C. |
x > 1.63 |
D. |
x > 0.82 |
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Hint |
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16. |
Evaluate  . |
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A. |
10.5 |
B. |
6 |
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C. |
7.5 |
D. |
15 |
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Hint |
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17. |
Suppose a triangle has three sides which measure 10, 13, and 17. What is the measure of the largest angle? |
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A. |
94.4° |
B. |
91.3° |
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C. |
85.6° |
D. |
88.7° |
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Hint |
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18. |
Suppose Alex wants to kick a ball over a 10-foot fence. Assuming that gravity has no effect, at what angle would he have to kick the ball if he were standing 6 feet away from the fence? |
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A. |
59.0° |
B. |
31.0° |
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C. |
36.9° |
D. |
53.1° |
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Hint |
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19. |
How is the function y = 3 sin ( +30) shifted? |
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A. |
shifted 30° to the right |
B. |
shifted 30° to the left |
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C. |
shifted up 30° |
D. |
shifted down 30° |
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Hint |
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20. |
Which expression is equivalent to sin ? |
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A. |
sin (180° ) |
B. |
cos ( + 180°) |
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C. |
cos (90° + ) |
D. |
cos (270° + ) |
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Hint |
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