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1. |
Solve the system of equations by graphing. 
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A. |
(0, 3) |
B. |
no solution |
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C. |
(-1, 7) |
D. |
infinitely many solutions |
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Hint |
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2. |
Solve x2 - 6x + 25 = 0. |
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A. |
-3 ± 4i |
B. |
6 ± 8i |
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C. |
3 ± 4i |
D. |
 |
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Hint |
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3. |
Solve 9t2 - 15t + 4  0. |
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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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4. |
Determine the inverse of the function  |
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A. |
2x + 1 |
B. |
2x + 2 |
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C. |
2x - 2 |
D. |
x + 2 |
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Hint |
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5. |
Determine the 10th term of the sequence –17, -13, -9, . . . |
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A. |
36 |
B. |
-53 |
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C. |
53 |
D. |
19 |
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Hint |
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6. |
Determine the sum of an arithmetic series where n = 45, a1 = 14.3, and an = 80.3. |
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A. |
3627.8 |
B. |
3613.5 |
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C. |
4257 |
D. |
2128.5 |
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Hint |
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7. |
What is Sn if a1 = 27.5, d = 1.5, and n = 35? |
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A. |
98,175 |
B. |
1855 |
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C. |
1245 |
D. |
2152.5 |
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Hint |
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8. |
 |
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A. |
11 + 12 + 13 + 14 + 15; 65 |
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B. |
10 + 20 + 30 + 40 + 50; 150 |
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C. |
1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10; 55 |
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D. |
10 + 1 + 2 + 3 + 4 + 5; 25 |
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Hint |
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9. |
What is the sum of the first eight terms of the geometric series for which a1 = -4 and r = -2? |
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A. |
256 |
B. |
1024 |
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C. |
1020 |
D. |
340 |
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Hint |
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10. |
Juanita started a savings account with the $200 she received for her birthday. The bank pays 4% interest compounded annually. Find the balance in the account after 4 years. Round the answer to the nearest dollar. |
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A. |
$225 |
B. |
$234 |
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C. |
$208 |
D. |
$216 |
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Hint |
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11. |
Solve the system 4y – 6x + 8z = 13, 10y – 15x + 20z = 6, y – 5x + 2z = 5. |
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A. |
(-3, 1, 7) |
B. |
 |
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C. |
infinite solutions |
D. |
no solution |
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Hint |
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12. |
Which of the following is true concerning matrix multiplication of three matrices A, B, and C? |
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A. |
AB = BA for no cases |
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B. |
AB = BA for all cases |
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C. |
(A + B)C = CA + CB |
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D. |
C(A + B) = CA + CB |
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Hint |
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13. |
Evaluate  |
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A. |
128 |
B. |
38 |
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C. |
–38 |
D. |
–128 |
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Hint |
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14. |
Solve the system –2x – 4y = 7, 3x + 5y = 9. |
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A. |
 |
B. |
(71, –39) |
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C. |
 |
D. |
 |
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Hint |
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15. |
Simplify  |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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16. |
Solve by graphing. If exact roots cannot be found, state the consecutive integers between which the roots are located. |
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A. |
between 0 and 1, and 1 and 2 |
B. |
1, 2 |
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C. |
between –1 and 0, and 1 and 2 |
D. |
between 0 and 1, and 2 and 3 |
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Hint |
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17. |
Solve by graphing. |
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A. |
no real roots |
B. |
x = 0 |
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C. |
x = –2 |
D. |
x = 2 |
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Hint |
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18. |
A quadratic function has two real roots. How many times does the graph cross the x-axis? |
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A. |
cannot be determined from given information. |
B. |
0 |
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C. |
1 |
D. |
2 |
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Hint |
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19. |
What is the domain and range of  ? |
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A. |
D: 
R:  |
B. |
D: 
R: |
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C. |
D:
R:  |
D. |
D:
R: |
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Hint |
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20. |
Solve ln (2x + 3) > 4. |
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A. |
x < 25.8 |
B. |
x > 25.8 |
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C. |
x > 20.2 |
D. |
x < 20.2 |
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Hint |
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