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1. |
Find the y-intercept of the graph of 2x - 5y = 10. |
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A. |
-2 |
B. |
5 |
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C. |
0 |
D. |
2 |
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Hint |
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2. |
A best-fit line is drawn on a scatter plot showing the average daily temperature and the number of people at a public swimming pool. The slope of the line would probably be ________ |
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A. |
negative. |
B. |
undefined. |
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C. |
positive. |
D. |
zero. |
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Hint |
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3. |
The equations y = -0.38x + 56.6 and y = 0.38x + 43.4 represent the percent of men and women, respectively, receiving bachelor's degrees, where x is the number of years since 1968. In approximately what year did the same percent of men and women receive bachelor's degrees? |
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A. |
1980 |
B. |
1985 |
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C. |
1995 |
D. |
1990 |
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Hint |
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4. |
Use Cramer's rule to find the value of x in the system of equations. 
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A. |
 |
B. |
 |
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C. |
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D. |
 |
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Hint |
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5. |
Solve the system of equations. 
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A. |
infinite number of solutions |
B. |
no solution |
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C. |
(0, -2, 7) |
D. |
(1, 1, 2) |
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Hint |
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6. |
 |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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7. |
Express 45,280,000 in scientific notation. |
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A. |
45.28 × 106 |
B. |
4.528 × 10-7 |
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C. |
4.528 × 106 |
D. |
4.528 × 107 |
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Hint |
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8. |
Find the area of the parallelogram. |
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A. |
(36a2 - 49b2) cm2 |
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B. |
(36a2 + 49b2) cm2 |
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C. |
(36a2 - 84ab - 49b2) cm2 |
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D. |
(12a2 + 14b2) cm2 |
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Hint |
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9. |
Simplify (7 - 2i)(7 + 2i). |
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A. |
53 |
B. |
45 |
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C. |
49 |
D. |
33 |
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Hint |
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10. |
Solve 2p2 - 3p -2 = 0 by factoring. |
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A. |
1, 2 |
B. |
- , 2 |
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C. |
-2, |
D. |
, 2 |
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Hint |
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11. |
The function whose graph is shown has _____. |
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A. |
two relative minima |
B. |
one relative minimum |
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C. |
no relative maxima |
D. |
two relative maxima |
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Hint |
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12. |
Approximate the real zero of h(x) = 2x4 - 3x2 + x + 1 to the nearest tenth. |
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A. |
-1.3, -0.5 |
B. |
-0.3 |
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C. |
1.6 |
D. |
-1.5, 0.9 |
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Hint |
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13. |
What are all of the rational zeros of the function
q(x) = x4 - x3 + 4x2 - 4x? |
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A. |
0, -2 |
B. |
0 |
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C. |
0, 1, ±2 |
D. |
0, 1 |
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Hint |
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14. |
Determine the inverse of the function  |
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A. |
x + 2 |
B. |
2x + 2 |
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C. |
2x + 1 |
D. |
2x - 2 |
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Hint |
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15. |
Which pair of functions are inverses? |
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A. |
f(x) = 2x + 1,
g(x) = 2x - 1 |
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B. |
f(x) = 4x, g(x) = -4x |
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C. |
 |
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D. |
 |
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Hint |
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16. |
Two sides of an angle are contained in lines whose equations are 6x + 4y = 15 and 7x – 9y = 3. Find the coordinates of the vertex of the angle. Round to the nearest hundredth. |
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A. |
(1.79, 1.06) |
B. |
(147, 87) |
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C. |
(–147, –87) |
D. |
(–1.79, 1.06) |
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Hint |
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17. |
Simplify |
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A. |
 |
B. |
 |
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C. |
y + 7 |
D. |
 |
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Hint |
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18. |
 |
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A. |
36 |
B. |
6 |
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C. |
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D. |
72 |
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Hint |
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19. |
Solve  |
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A. |
36 |
B. |
 |
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C. |
18 |
D. |
no real solution. |
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Hint |
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20. |
Which of the following is a polynomial in one variable? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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