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1. |
Which statement is true about the graph shown below? |
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A. |
The relation is not a function. |
B. |
The range is {-3, -2, 0, 1}. |
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C. |
The relation is a function. |
D. |
The domain is {-3, 2, 4}. |
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Hint |
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2. |
Solve the system of equations. 
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A. |
(0, -2, 7) |
B. |
infinite number of solutions |
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C. |
no solution |
D. |
(1, 1, 2) |
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Hint |
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3. |
Triangle PQR with vertices P(-8, 9), Q(-3, -1), and R(2, 5) is translated so that P' is at (-12, 0). Find the translation matrix. |
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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. |
Simplify (18q3r)(2qr4). |
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A. |
36q4r5 |
B. |
36qr |
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C. |
36q3r5 |
D. |
36q3r4 |
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Hint |
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5. |
Which is the inverse of the relation {(1, -3), (3, 5), (6, -2)}? |
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A. |
{(-3, 1), (5, 3), (-2, 6)} |
B. |
{(1, -2), (3, 8), (6, 4)} |
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C. |
{(1, -3), (3, 5), (6, -2)} |
D. |
{(1, 5), (3, -2), (6, -3)} |
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Hint |
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6. |
Which pair of functions are inverses? |
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A. |
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B. |
f(x) = 4x, g(x) = -4x |
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C. |
f(x) = 2x + 1,
g(x) = 2x - 1 |
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D. |
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Hint |
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7. |
Multiply  |
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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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8. |
Solve  |
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A. |
-1, 4 |
B. |
-1 |
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C. |
1, 4 |
D. |
0 |
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Hint |
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9. |
Select the tree diagram that shows all the possible results of tossing a penny and rolling a number cube. |
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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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10. |
Which diagram illustrates all the different choices when spinning both spinners at the same time? |
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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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11. |
Multiply C(12, 5)× C(15, 10). |
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A. |
180 |
B. |
792 |
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C. |
2,378,376 |
D. |
3003 |
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Hint |
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12. |
Which method of finding solutions would work best to find the solutions to the system 12.4x – 3.66y = 12.19, 3.9x + 6.17y = 19.28, and why? |
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A. |
elimination, because 6.17 is a factor of 3.66 |
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B. |
Cramer's Rule, because there are fewer calculations. |
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C. |
Cramer's Rule, because none of the other methods will correctly solve the problem |
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D. |
elimination, because Cramer's Rule doesn't apply to this problem |
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Hint |
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13. |
Determine whether f(x) = –x2 – 3x + 4 has a maximum or a minimum. |
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A. |
maximum |
B. |
cannot be determined from given information |
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C. |
minimum |
D. |
both |
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Hint |
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14. |
What must be true in order for a term x – a to be a factor of a polynomial f(x)? |
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A. |
a must be positive |
B. |
f(a) must be negative |
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C. |
f(a) = 0 |
D. |
f(a) must be positive |
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Hint |
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15. |
Is the inverse of a quadratic function a square root function? |
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A. |
It is a square root function only if the range is restricted to nonnegative numbers. |
B. |
No. |
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C. |
Yes. |
D. |
It is a square root function only if it is a quadratic function that opens up. |
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Hint |
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16. |
Write the equation  in standard form. |
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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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17. |
Write the standard form equation of  and identify the conic section. |
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A. |
 hyperbola |
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B. |
 ellipse |
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C. |
 hyperbola |
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D. |
 parabola |
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Hint |
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18. |
Gail and Gayla throw balls into the air. The equation  represents Gail's throw, where x is time in seconds, and y is height. Gayla's throw is represented by  When are the balls at the same height? |
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A. |
at 5 seconds |
B. |
at 7 seconds |
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C. |
never |
D. |
at –1 seconds |
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Hint |
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19. |
Which of the following is not necessarily true concerning the Arcsin function? |
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A. |
Sin x = y if and only if Sin-1 x = y |
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B. |
Its range is the set of angle measures from  |
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C. |
Its domain is the set of real numbers from –1 to 1. |
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D. |
[Sin-1  Sin](x) = [Sin Sin-1](x) = x |
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Hint |
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20. |
Find the exact value of sin 165°. |
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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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