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1. |
When Kristin works 8 hours, she earns $60. When she works 20 hours, she earns $150. Write a linear equation that describes her earnings. Assume that the changes increase linearly. |
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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. |
Simplify  |
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A. |
5t3u3v4 |
B. |
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C. |
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D. |
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Hint |
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3. |
Use synthetic division to find  |
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A. |
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B. |
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C. |
2d3 - d2 + 2d - 4 + 5 |
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D. |
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Hint |
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4. |
Simplify  |
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A. |
±84.5 |
B. |
-13 |
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C. |
13 |
D. |
±13 |
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Hint |
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5. |
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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6. |
Find the coordinates of the center of a circle with equation
x2 + y2 - 2x + 8y + 13 = 0. |
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A. |
(-1, -4) |
B. |
(1, -4) |
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C. |
(1, 4) |
D. |
(-1, 4) |
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Hint |
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7. |
Find the length of the minor axis of an ellipse with equation
5x2 + 3y2 + 10x - 18y + 17 = 0. |
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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 the equation (x -2)(x + 2) = 0. |
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A. |
-2, 2 |
B. |
2, 0 |
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C. |
2 |
D. |
-2 |
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Hint |
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9. |
The roots of x2 + 4x + 7 are________. |
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A. |
real and irrational |
B. |
real and rational |
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C. |
real and imaginary |
D. |
imaginary |
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Hint |
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10. |
Find an equation for the parabola shown in the graph. |
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A. |
y = (x - 2)2 + 4 |
B. |
y = (x + 2)2 - 4 |
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C. |
y =  (x + 2)2 - 4 |
D. |
y = (x - 2)2 - 4 |
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Hint |
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11. |
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 - 6 |
B. |
x - 3 |
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C. |
x - 2 |
D. |
x + 1 |
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Hint |
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12. |
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. |
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D. |
-3 |
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Hint |
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13. |
Solve the equation 3y + 8 = 36. |
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A. |
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B. |
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C. |
20 |
D. |
4 |
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Hint |
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14. |
Is the relation shown in the graph a function? Why or why not? |
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A. |
No, the relation contains the ordered pairs (0, -1) and (3, -1). |
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B. |
Yes, the relation contains very few ordered pairs. |
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C. |
No, the relation contains the ordered pairs (3, -1) and (3, 2). |
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D. |
Yes, the ordered pairs (-3, 2), (-1, 1), and (3, -1) form a straight line. |
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Hint |
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15. |
The table shows the average heights (in centimeters) of females ages 1-14. If this trend continues, about how tall will an average fifteen-year-old female be? |
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A. |
160.3 cm |
B. |
163.7 cm |
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C. |
156.9 cm |
D. |
168.5 cm |
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Hint |
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16. |
When finding the equation for a line of fit for a scatter plot, you should use __________. |
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A. |
all of the points on the plot |
B. |
the point most characteristic of the scatter 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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17. |
Determine whether the pair of matrices  are inverses. |
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A. |
yes, because A · B = I. |
B. |
no, because A · B  I |
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C. |
yes, because each entry in the second matrix is the reciprocal of its corresponding entry in the first matrix. |
D. |
no, because fractions cannot be a part of an inverse |
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Hint |
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18. |
Solve the system of equations4x – 2y = 2, –3x + 7y = –29 |
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A. |
(–2, 5) |
B. |
no solution |
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C. |
(2, –5) |
D. |
(–2, –5) |
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Hint |
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19. |
If a = 2 and the vertex is (3, -4), will there be a minimum or maximum value for the parabola? What is the value? |
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A. |
maximum, –4 |
B. |
maximum, –3 |
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C. |
maximum, 3 |
D. |
minimum, –4 |
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Hint |
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20. |
What are the equations of the asymptotes of  ? |
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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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