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1. |
What is the degree of the polynomial p(x) = 2x5 - 6x4 + 2x2 + 7x - 9? |
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A. |
5 |
B. |
3 |
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C. |
4 |
D. |
2 |
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Hint |
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2. |
One of the factors of x3 - 7x + 6 is x - 1. Which of the following is one of the other factors? |
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A. |
x + 1 |
B. |
x - 6 |
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C. |
x - 2 |
D. |
x - 3 |
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Hint |
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3. |
Approximate the real zero of g(x) = x5 - x2 - 1 to the nearest tenth. |
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A. |
0.9 |
B. |
1.1 |
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C. |
1.2 |
D. |
1.0 |
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Hint |
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4. |
State the number of positive real zeros for the polynomial
f(x) = x3 + 4x2 + x + 5. |
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A. |
0 |
B. |
2 |
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C. |
3 |
D. |
1 |
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Hint |
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5. |
Which is not a possible rational zero of the function
g(x) = 3x3 + 2x2 - 7x - 6? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
-3 |
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Hint |
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6. |
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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7. |
Find g[f(-2)], if f(x) = x2 and g(x) = 3x – 5. |
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A. |
-17 |
B. |
-44 |
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C. |
7 |
D. |
-7 |
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Hint |
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8. |
Which pair of functions are inverses? |
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A. |
 |
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B. |
f(x) = 2x + 1,
g(x) = 2x - 1 |
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C. |
f(x) = 4x, g(x) = -4x |
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D. |
 |
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Hint |
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9. |
Which of the following is a polynomial in one variable? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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10. |
Which graph best represents the function  ? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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11. |
Solve x4 – 625 = 0 |
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A. |
 |
B. |
5, 5i |
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C. |
 |
D. |
 |
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Hint |
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12. |
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. |
f(a) must be positive |
B. |
f(a) = 0 |
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C. |
a must be positive |
D. |
f(a) must be negative |
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Hint |
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13. |
Find all of the roots of the equation  |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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14. |
Which of the following is a zero of the polynomial  |
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A. |
 |
B. |
 |
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C. |
6 |
D. |
 |
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Hint |
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15. |
Given  and  , what is  ? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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16. |
What is the inverse of the relation (3, -1), (2, 5), (-4, -4)? |
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A. |
(-3, -1), (-2, 5), (4, -4) |
B. |
(-1, 3), (5, 2), (-4, -4) |
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C. |
(-1, 3), (5, 2), (4, 4) |
D. |
(1, -3), (-5, -2), (4, 4) |
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Hint |
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17. |
What are the x- and y-intercepts of  ? |
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A. |
x: –5, y: |
B. |
x: 5, y: |
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C. |
x:, y: –5 |
D. |
x: no intercept, y: |
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Hint |
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18. |
Which of the following points will not be included in the graph of  ? |
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A. |
(2, 4) |
B. |
(3, 9) |
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C. |
(-2, 4) |
D. |
(4, 6) |
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Hint |
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