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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. |
Write the translation matrix for  and its image  |
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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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3. |
Simplify  |
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A. |
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B. |
k-3 |
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C. |
k17 |
D. |
k3 |
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Hint |
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4. |
Find the coordinates of the midpoint of the segment with endpoints at
(3, -5) and (6, 7). |
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A. |
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B. |
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C. |
(9, 2) |
D. |
(4, 1) |
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Hint |
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5. |
Find the coordinates of the center of an ellipse with equation
9x2 + 4y2 - 72x + 16y + 124 = 0. |
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A. |
(2, 3) |
B. |
(4, 2) |
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C. |
(4, 9) |
D. |
(4, -2) |
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Hint |
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6. |
The graph of the equation -x2 + 4y2 - 10x - 8y - 29 = 0 is a(n) _____. |
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A. |
hyperbola |
B. |
parabola |
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C. |
ellipse |
D. |
circle |
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Hint |
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7. |
Find the axis of symmetry of the graph of f(x) = 4x2 -4x + 4. |
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A. |
y = 3 |
B. |
x = 4 |
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C. |
x =  |
D. |
x = 2 |
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Hint |
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8. |
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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9. |
Solve log4 x = 3 |
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A. |
81 |
B. |
16 |
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C. |
64 |
D. |
12 |
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Hint |
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10. |
Solve log6 ( y2 - 9) = log6 ( 7y - 21). |
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A. |
4 |
B. |
-6, 4 |
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C. |
3, 6 |
D. |
3, 4 |
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Hint |
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11. |
In a random survey of 600 students in a school, 75% of the students said that they participated in extra-curricular activities. Find the margin of error for the sampling. |
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A. |
0.0176777 |
B. |
0.0003125 |
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C. |
0.0004167 |
D. |
0.0353553 |
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Hint |
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12. |
Evaluate  if a = 2, b = 4, and c = -1. |
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A. |
1 |
B. |
7 |
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C. |
2.4 |
D. |
-14 |
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Hint |
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13. |
Solve  |
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A. |
{y | y  21} |
B. |
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C. |
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D. |
{y | y < 21} |
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Hint |
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14. |
Find the slope of the line below. |
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A. |
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B. |
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C. |
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D. |
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15. |
Find the product 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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16. |
Which of the following cannot be true concerning Cramer's Rule for two variables? |
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A. |
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B. |
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C. |
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D. |
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17. |
Find the minimum value of  . |
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A. |
11 |
B. |
2 |
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C. |
7 |
D. |
(2, 7) |
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Hint |
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18. |
Write an equation for the ellipse whose endpoints of its major axis are at (2, -7) and (2, 3), and that of its minor axis are at (-1, -2) and (5, -2). |
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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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19. |
Which of the following is an example of an expression whose seventh term in its binomial expansion is 1716x7y6? |
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A. |
(x + y)13 |
B. |
(x + y)14 |
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C. |
(x + 3y)12 |
D. |
(2x + y)11 |
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Hint |
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20. |
In induction, the statement is proven after which step? |
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A. |
after we assume true for n = 1 |
B. |
after n = k + 1 is proven |
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C. |
after n = 1 is proven |
D. |
after (k + 1)2 is added to each side. |
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Hint |
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