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1. |
Which equation has a graph that is parallel to the graph of 4x - 2y = 1? |
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A. |
 |
B. |
y = 2x - 3 |
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C. |
 |
D. |
 |
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Hint |
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2. |
Solve the system of equations by graphing. 
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A. |
no solution |
B. |
infinitely many solutions |
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C. |
(0, 3) |
D. |
(-1, 7) |
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Hint |
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3. |
Solve the system of equations. 
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A. |
(0, -2, 7) |
B. |
no solution |
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C. |
infinite number of solutions |
D. |
(1, 1, 2) |
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Hint |
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4. |
Does the inverse of  exist? If it does not exist, explain why not. |
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A. |
No; the determinant equals 0. |
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B. |
Yes |
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C. |
No; the elements of the principal diagonal are not 1. |
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D. |
No; the matrix is not square. |
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Hint |
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5. |
What is the degree of 42x5y2z? |
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A. |
2 |
B. |
7 |
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C. |
8 |
D. |
5 |
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Hint |
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6. |
Simplify (-3a5b3)4. |
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A. |
81a20b12 |
B. |
-81a9b12 |
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C. |
-12a9b7 |
D. |
-12a20b12 |
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Hint |
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7. |
Use synthetic division to find
(4x3 + 13x2 - 2x -15) ÷ (x + 3). |
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A. |
4x2 + x + 5 |
B. |
x2 + x - 5 |
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C. |
4x2 + x - 5 |
D. |
4x - 5 |
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Hint |
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8. |
Factor 8a4b - 3ab2c. |
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A. |
ab(8a3 - 3bc) |
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B. |
a2b(8a2 - 3bc) |
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C. |
abc(8a3 - 3b) |
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D. |
8ab(a2 - 3bc) |
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Hint |
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9. |
Solve 2p2 - 3p -2 = 0 by factoring. |
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A. |
- , 2 |
B. |
1, 2 |
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C. |
, 2 |
D. |
-2, |
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Hint |
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10. |
Find f(-2) for f(x) = 2x4 - x3 + 5x + 1. |
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A. |
-21 |
B. |
-29 |
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C. |
-57 |
D. |
31 |
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Hint |
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11. |
Solve  . |
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A. |
4 |
B. |
16 |
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C. |
4, 16 |
D. |
-4, 2 |
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Hint |
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12. |
Solve the equation | 4k + 6 | = 5k + 3. |
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A. |
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B. |
-1 |
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C. |
{-1, 3} |
D. |
3 |
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Hint |
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13. |
Solve the inequality | f | > 4. |
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A. |
{f | -4 > f > 4} |
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B. |
{f | f < -4 or f > 4} |
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C. |
{f | -4 < f < 4} |
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D. |
{f | f > -4 or f < 4} |
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Hint |
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14. |
At a firm, there are three workers that are supposed to work a combined 110 hours per week. Worker 1 gets paid $10 per hour, worker 2 gets paid $12 per hour, and worker 3 gets paid $14 per hour. If the company wants their total income to be $1268, how many hours should each one work if worker 3 and worker 2 work for the same amount of hours? |
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A. |
worker 1: 14worker 2: 48worker 3: 48 |
B. |
worker 1: 40worker 2: 35worker 3: 35 |
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C. |
worker 1: 44worker 2: 33worker 3: 33 |
D. |
worker 1: 54worker 2: 28worker 3: 28 |
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Hint |
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15. |
If  and  find 3A + 2B. |
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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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16. |
Solve the system 3x + 2y – z = –1, –2x + –3y + 2z = 5, 4x – y + 3z = 11. |
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A. |
(2, 4, –2) |
B. |
(1, 4, –3) |
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C. |
(1, –1, 2) |
D. |
(2, –1, 2) |
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Hint |
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17. |
Simplify:  |
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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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18. |
If the graph of y = x2 is shifted 4 units to the right, and 2 units down, what is the equation of the new graph? |
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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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19. |
If a0 = 1 is the leading coefficient of a polynomial, which of the following cannot be a zero of the polynomial? |
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A. |
119 |
B. |
0 |
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C. |
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D. |
1 |
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Hint |
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20. |
Which of the following points will not be included in the graph of  ? |
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A. |
(3, 9) |
B. |
(-2, 4) |
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C. |
(4, 6) |
D. |
(2, 4) |
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Hint |
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