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1. |
Solve the system of equations by using the elimination method. 
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A. |
(34, -13) |
B. |
(12, -2) |
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C. |
(4, 2) |
D. |
(2, 3) |
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Hint |
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2. |
Use Cramer's rule to solve the system of equations. 
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A. |
(0.4, 0.2) |
B. |
(0.2, 0.4) |
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C. |
(0.011, 0.0055) |
D. |
(-0.4, -0.2) |
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Hint |
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3. |
Which is not a point at which a maximum or minimum value of a function could occur for the feasible region? |
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A. |
(1, 5) |
B. |
(-3, 0) |
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C. |
(-3, 6) |
D. |
(0, 3) |
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Hint |
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4. |
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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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5. |
Find 3 |
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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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6. |
Simplify  |
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A. |
-13 |
B. |
±84.5 |
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C. |
13 |
D. |
±13 |
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Hint |
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7. |
Simplify  |
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A. |
3 |
B. |
27 |
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C. |
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D. |
9 |
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Hint |
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8. |
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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9. |
Find the axis of symmetry of the graph of g(x) = x2 - 5x + 2. |
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A. |
x = -5 |
B. |
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C. |
x = 2 |
D. |
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Hint |
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10. |
Solve y2 + 8y + 16 = 0 by factoring. |
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A. |
-4, 4 |
B. |
4 |
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C. |
-4 |
D. |
4, 8 |
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Hint |
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11. |
Solve x2 - 4x + 1 = 0 by completing the square. |
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A. |
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B. |
2 |
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C. |
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D. |
1 |
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Hint |
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12. |
Solve x + 7 > 13. |
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A. |
{x | x > 20} |
B. |
{x | x > 6} |
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C. |
{x | x  20} |
D. |
{x | x < 13} |
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Hint |
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13. |
Which of the following is not a vertex of the figure formed by  |
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A. |
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B. |
(6, 4) |
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C. |
(0, 2) |
D. |
(2, –1) |
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Hint |
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14. |
Which of the following matrices is equal to  |
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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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15. |
If  and  find 3A + 2B. |
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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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16. |
Find the coordinates of the vertices of the image of a triangle FGH with F(-4, 2), G(-3, -3), H(3,4) after it is rotated 270° counterclockwise about the origin. |
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A. |
F'(2, -4), G'(-3, -3),H'(4, 3) |
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B. |
F'(-2, 4), G'(3, 3),H'(-4, -3) |
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C. |
F'(2, 4), G'(-3, 3),H'(4, -3) |
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D. |
F'(4, 2), G'(3, -3),H'(-3, 4) |
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Hint |
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17. |
Express the result in scientific notation. (3 × 10-3)(2 × 109) |
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A. |
6 × 106 |
B. |
3 × 106 |
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C. |
3 × 1012 |
D. |
6 × 1012 |
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Hint |
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18. |
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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19. |
If the vertex of a parabola is (3, -4), what is its axis of symmetry? |
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A. |
y = 3 |
B. |
x = 3 |
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C. |
y = -4 |
D. |
x = -4 |
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Hint |
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20. |
What is the equation of the parabola whose vertex is at (-3, 1) and passes through the point (-2, 4)? |
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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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