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1. |
The scatter plot below shows the women's winning marathon times and the high temperatures on the marathon days. Which prediction equation best shows how marathon times and temperature are related? |
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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. |
What is the first step in solving the system of equations using the elimination method? 
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A. |
Multiply the second equation by 2. |
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B. |
Subtract the second equation from the first equation. |
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C. |
Solve the first equation for x. |
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D. |
Add the equations. |
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Hint |
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3. |
What is the solution of the system of inequalities? 
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A. |
region 3 |
B. |
region 4 |
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C. |
region 2 |
D. |
region 1 |
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Hint |
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4. |
A baker earns 15¢ profit per glazed doughnut g, and 40¢ profit per jelly doughnut j. If a customer wants to buy no more than a dozen doughnuts and wants to try at least one of each kind, what is the maximum profit the baker can earn? |
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A. |
$3.30 |
B. |
$1.80 |
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C. |
$4.55 |
D. |
$4.80 |
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Hint |
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5. |
Use synthetic division to find
(4x3 + 13x2 - 2x -15) ÷ (x + 3). |
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A. |
x2 + x - 5 |
B. |
4x2 + x + 5 |
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C. |
4x2 + x - 5 |
D. |
4x - 5 |
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Hint |
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6. |
Find the value of a so that the distance between points with coordinates (2, 5) and (-6, a) is 10 units. |
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A. |
1 only |
B. |
 or 11 |
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C. |
11 only |
D. |
1 or 11 |
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Hint |
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7. |
Find the length of the latus rectum of the parabola with equation
y = 3x2 + 2x - 6. |
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A. |
 unit |
B. |
 unit |
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C. |
1 unit |
D. |
 unit |
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Hint |
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8. |
Solve the equation n2 +3n = 0 by graphing. |
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A. |
3 |
B. |
0 |
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C. |
0, -3 |
D. |
0, 3 |
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Hint |
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9. |
Find the vertex of the graph of the function f(x) = x2 - 6x + 5. |
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A. |
(-6, 5) |
B. |
(3, 4) |
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C. |
(3, -4) |
D. |
(-3, 4) |
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Hint |
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10. |
Which is the graph of the inequality y < x2 -2x - 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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11. |
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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12. |
If y varies inversely as x and y = 3 when x = 3, find y when x = 4. |
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A. |
4 |
B. |
1 |
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C. |
3.5 |
D. |
2.25 |
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Hint |
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13. |
Solve log5 ( x + 2) + log5 ( 2x - 1) = 2. |
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A. |
 , 3 |
B. |
no solution |
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C. |
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D. |
3 |
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Hint |
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14. |
Find  to three decimal places. |
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A. |
2.3225 |
B. |
1.3617 |
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C. |
3.1355 |
D. |
1.6113 |
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Hint |
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15. |
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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16. |
Determine whether the expression 5x3y3 – x2y2 is a polynomial. |
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A. |
No, because there are two terms. |
B. |
Cannot be determined from given information. |
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C. |
Yes. |
D. |
No, because there are two variables. |
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Hint |
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17. |
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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. |
What is the domain and range of  ? |
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A. |
D: 
R:  |
B. |
D:
R:  |
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C. |
D: 
R: |
D. |
D:
R: |
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Hint |
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19. |
Solve the system   |
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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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20. |
The number of bacteria in a culture grew exponentially. When the experiment began, there were 100,000. Ten minutes later, that number grew to 220,000. Which of the following equations could be used to model this situation? |
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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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