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1. |
Evaluate  if t = 8, u = -2, and v = 5. |
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A. |
0.56 |
B. |
2.8 |
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C. |
0.08 |
D. |
0.2 |
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Hint |
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2. |
Solve |4x + 2| + 6 = 0. |
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A. |
1 |
B. |
2 |
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C. |
 |
D. |
-2 |
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Hint |
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3. |
Find the slope-intercept form of an equation of the line that has a slope of  and passes through (8,2). |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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4. |
Write an equation of the line that passes through (10,-4) and is perpendicular to the line whose equation is  |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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5. |
Choose the graph that shows the solution to the system of inequalities  and  |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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6. |
A feasible region has vertices at (4, 6), (-2, 3), (2, -2), and (3, 1). At which point is the maximum value of the function f(x, y) = 2x + y? |
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A. |
f(2, -2) |
B. |
f(4, 6) |
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C. |
f(-2, 3) |
D. |
f(3, 1) |
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Hint |
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7. |
Find the minimum value of f(x, y) = 4x - 2y for the polygonal region determined by the feasible region. |
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A. |
-28 |
B. |
-14 |
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C. |
27 |
D. |
14 |
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Hint |
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8. |
 |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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9. |
Evaluate  using expansion by minors. |
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A. |
64 |
B. |
68 |
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C. |
80 |
D. |
14 |
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Hint |
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10. |
Use synthetic division to find
(4x3 + 13x2 - 2x -15) ÷ (x + 3). |
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A. |
4x2 + x + 5 |
B. |
4x - 5 |
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C. |
4x2 + x - 5 |
D. |
x2 + x - 5 |
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Hint |
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11. |
Solve  |
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A. |
14 |
B. |
7 |
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C. |
-49 |
D. |
49 |
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Hint |
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12. |
Simplify (8 - 9i) + (3 + 4i). |
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A. |
11 - 5i |
B. |
11 + 5i |
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C. |
17 + 7i |
D. |
-i + 17 |
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Hint |
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13. |
Solve 4x2 - 8x + 3 = 0 by completing the square. |
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A. |
 , 3 |
B. |
 |
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C. |
1, 3 |
D. |
 |
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Hint |
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14. |
Which is not a root of z3 + 8 = 0? |
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A. |
 |
B. |
2 |
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C. |
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D. |
-2 |
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Hint |
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15. |
Solve x + 7 < 5 or x + 6 > 9. |
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A. |
{x | -2 < x < 3} |
B. |
{x | -2 > x > 3} |
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C. |
{x | x > -2 or x < 3} |
D. |
{x | x < -2 or x > 3} |
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Hint |
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16. |
Which of the following is an example of a column matrix? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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17. |
 |
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A. |
5 |
B. |
1 |
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C. |
–5 |
D. |
4 |
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Hint |
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18. |
Find the axis of symmetry of the following function:  |
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A. |
x = 7 |
B. |
x = –7 |
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C. |
x =  |
D. |
x =  |
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Hint |
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19. |
Solve  by graphing. |
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A. |
{x| 0 < x < 3} |
B. |
{x| –1.12 < x < 0} |
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C. |
{x| 0 < x < 3.12} |
D. |
{x| –1.12 < x < 3.12} |
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Hint |
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20. |
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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