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1. |
The formula for the area of a trapezoid is  Solve the formula for h. |
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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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2. |
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, 3) |
B. |
f(4, 6) |
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C. |
f(2, -2) |
D. |
f(3, 1) |
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Hint |
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3. |
Determine which expression is not a polynomial. |
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A. |
x2 - y2 + z2 |
B. |
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C. |
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D. |
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Hint |
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4. |
Find (c2 + 2c - 6)(c + 5). |
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A. |
c3 + 2c2 + 5 |
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B. |
c3 + 7c2 + 4c - 30 |
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C. |
c3 + 2c2 - 6c - 30 |
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D. |
c3 + 2c2 - 30 |
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Hint |
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5. |
Solve the equation (x -2)(x + 2) = 0. |
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A. |
2, 0 |
B. |
2 |
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C. |
-2, 2 |
D. |
-2 |
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Hint |
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6. |
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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7. |
What is the polynomial function of least degree with integral coefficients that has zeros 2 and 3i? |
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A. |
y = x2 + x - 6 |
B. |
y = x3 - 2x2 + 9x - 18 |
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C. |
y = x3 - 2x2 - 9x + 18 |
D. |
y = x2 - 5x - 6 |
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Hint |
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8. |
Which is not a possible rational zero of the function
g(x) = 3x3 + 2x2 - 7x - 6? |
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A. |
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B. |
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C. |
-3 |
D. |
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Hint |
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9. |
Which equation is in quadratic form? |
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A. |
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B. |
x4 - x2 + x - 1 = 0 |
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C. |
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D. |
3x3 + 3x + 3 = 0 |
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Hint |
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10. |
Find  if g(x) = x - 5 and h(x) = |x|. |
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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. |
Find g[f(-2)], if f(x) = x2 and g(x) = 3x – 5. |
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A. |
-44 |
B. |
-17 |
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C. |
7 |
D. |
-7 |
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Hint |
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12. |
If w varies directly as z and w = 9 when z = -6, find w when z = 3. |
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A. |
4.5 |
B. |
-2 |
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C. |
0 |
D. |
-4.5 |
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Hint |
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13. |
Solve log6 ( y2 - 9) = log6 ( 7y - 21). |
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A. |
4 |
B. |
3, 4 |
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C. |
-6, 4 |
D. |
3, 6 |
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Hint |
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14. |
Evaluate p · (p + 3q) – r if p = -7, q = 4, and r = -16. |
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A. |
-19 |
B. |
77 |
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C. |
45 |
D. |
-51 |
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Hint |
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15. |
A scatter plot is __________. |
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A. |
a set of data graphed as ordered pairs in a coordinate plane |
B. |
a line graph |
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C. |
a line graphed in a portion of Quadrant I of the coordinate plane |
D. |
a table of data |
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Hint |
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16. |
Which graph shows the inequality 5x – 2y  8? |
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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. |
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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18. |
Solve  |
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A. |
(–1, 2) |
B. |
(1, –2) |
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C. |
(2, –1) |
D. |
(–2, 1) |
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Hint |
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19. |
Which of the following properties does not hold for matrices? |
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A. |
left distributive property |
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B. |
commutative property of multiplication |
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C. |
associative property of multiplication |
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D. |
right distributive property |
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Hint |
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20. |
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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