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1. |
Solve 4x > 28. |
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A. |
{x | x > 28} |
B. |
{x | x < 4} |
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C. |
{x | x > 7} |
D. |
{x | x < 7} |
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Hint |
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2. |
Find the determinant of  |
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A. |
-21 |
B. |
0 |
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C. |
-11 |
D. |
-16 |
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Hint |
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3. |
Factor m3 - 4m2 + 6m - 24. |
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A. |
(m + 4)(m2 - 6) |
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B. |
m2(m - 4) + 6m - 24 |
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C. |
m(m2 - 4m + 6) - 24 |
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D. |
(m - 4)(m2 + 6) |
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Hint |
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4. |
Find an equation for the graph below. |
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 |
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A. |
(x + 4)2 + (y - 1)2 = 4 |
B. |
(x - 4)2 + (y + 1)2 = 4 |
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C. |
(x - 4)2 + (y + 1)2 = 2 |
D. |
(x + 4)2 + (y - 1)2 = 2 |
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Hint |
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5. |
Use the graph to determine the solution of -x2 + 6x - 9 = 0. |
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A. |
-9 |
B. |
4 |
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C. |
2 |
D. |
3 |
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Hint |
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6. |
Solve x2 - 4x - 5 = 0 by factoring. |
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A. |
-1, -5 |
B. |
-1, 5 |
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C. |
1, 5 |
D. |
1, -5 |
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Hint |
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7. |
Solve 2p2 - 3p -2 = 0 by factoring. |
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A. |
- , 2 |
B. |
1, 2 |
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C. |
-2, |
D. |
, 2 |
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Hint |
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8. |
Which function has a graph that opens upward? |
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A. |
f(x) = 2x2 - 5x - 2 |
B. |
f(x) = -x2 + 3x -12 |
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C. |
f(x) = -5x2 -6x -3 |
D. |
f(x) = -x2 + 4x + 7 |
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Hint |
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9. |
The curve shown is________. |
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 |
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A. |
positively skewed |
B. |
not skewed |
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C. |
normal |
D. |
negatively skewed |
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Hint |
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10. |
What is the leading coefficient of the polynomial
p(x) = -3x5 + 4x3 - 5x2 + 4x - 6? |
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A. |
-3 |
B. |
4 |
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C. |
-6 |
D. |
3 |
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Hint |
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11. |
Find the arithmetic means of the sequence  |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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12. |
What is Sn if a1 = 27.5, d = 1.5, and n = 35? |
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A. |
1855 |
B. |
2152.5 |
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C. |
1245 |
D. |
98,175 |
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Hint |
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13. |
When finding the equation for a line of fit for a scatter plot, you should use __________. |
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A. |
the point most characteristic of the scatter plot |
B. |
all of the points on the plot |
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C. |
the first and last points on the plot, with respect to the horizontal |
D. |
two points that you think represent the data well |
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Hint |
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14. |
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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15. |
 |
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A. |
5 |
B. |
4 |
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C. |
–5 |
D. |
1 |
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Hint |
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16. |
Simplify:  |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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17. |
A quadratic function has two real roots. How many times does the graph cross the x-axis? |
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A. |
cannot be determined from given information. |
B. |
2 |
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C. |
1 |
D. |
0 |
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Hint |
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18. |
Write the equation  in standard form. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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19. |
What are the equations of the asymptotes of  ? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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20. |
What type of function is  ? |
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A. |
direct variation function |
B. |
inverse variation function |
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C. |
square root function |
D. |
absolute value function |
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Hint |
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