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1. |
Use the scatter plot to predict the mileage of an engine with 250 horsepower. |
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A. |
10 |
B. |
25 |
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C. |
20 |
D. |
12 |
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2. |
What is the slope of the line through the points A(-3, 4) and B(2, -1)? |
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A. |
-3 |
B. |
-1 |
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C. |
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D. |
1 |
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3. |
Draw the graph of y < 0.5x + 1. |
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A. |
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B. |
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C. |
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D. |
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4. |
Rectangle DEFG has vertices D(-4, -1), E(-2, -1), F(-2, -4), and
G(-4, -4). Which graph shows the translation image of the rectangle that is 6 units right and 3 units up? |
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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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5. |
A rotation of 180° counterclockwise or 180° clockwise would be ______. |
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A. |
the same |
B. |
different |
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C. |
None of these is correct. |
D. |
impossible |
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Hint |
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6. |
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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7. |
Find the graph that does not have direct variation. |
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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. |
Find the situation that involves a decreasing linear relationship and has direct variation. |
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A. |
A submarine that begins at the bottom of the ocean and is raised to the surface of the water at 15 meters per second. |
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B. |
An airplane that begins at 20,000 feet and descends for a landing on the ground at the airport. |
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C. |
A bucket that begins at ground level and is lowered into a well at a rate of 1 foot per second. |
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D. |
The temperature that begins at 0°F at 6:00 a.m. rises 3°F every hour for 6 hours. |
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Hint |
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9. |
Find the table that represents a graph with direct variation. |
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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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10. |
What is the equation of a line that has a slope of 4 and passes through (6, 3)? |
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A. |
y = 4x – 7 |
B. |
y = 4x – 3 |
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C. |
y = 4x – 27 |
D. |
y = 4x – 21 |
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Hint |
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11. |
Consider the equation xy = 3. What happens to the value of y when x doubles? |
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A. |
y doubles |
B. |
y halves |
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C. |
y quarters |
D. |
y triples |
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Hint |
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12. |
What is a conjecture? |
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A. |
a ''shot in the dark'' guess that has been proved |
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B. |
an educated guess that has been proved |
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C. |
an educated guess that hasn't been proved yet |
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D. |
a ''shot in the dark'' guess that hasn't been proved yet |
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Hint |
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13. |
What type of relationship does the equation have if its second differences are constant? |
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A. |
constant |
B. |
cubic |
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C. |
quadratic |
D. |
linear |
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Hint |
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14. |
Tell whether the statement is sometimes true, always true, or never true for positive values of n. If it is sometimes true, state for what value it is true.
4n = 6,561. |
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A. |
sometimes true, n = 7 |
B. |
always true |
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C. |
never true |
D. |
sometimes true, n = 8 |
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Hint |
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15. |
Find a solution to the equation by doing the same thing to both sides.
8p + 14 = 2p – 22 |
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A. |
p = 1 |
B. |
p = –1 |
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C. |
p = –6 |
D. |
p = 6 |
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Hint |
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16. |
Use you calculator's Table feature to approximate the solutions to the nearest hundredth.
4x(x + 2) = 12 |
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A. |
x = 2, x = –2 |
B. |
x = 1, x = –3 |
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C. |
x = –1, x = –4 |
D. |
x = 0, x = –4 |
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Hint |
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17. |
Use a graph to solve the system of equations.
y = x2
y = –x + 2 |
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A. |
(–2, 1), (1, 4) |
B. |
(1, 1), (4, –2) |
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C. |
(–2, 4), (1, 1) |
D. |
(4, 1), (1, –2) |
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Hint |
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18. |
What is the scale factor of Figure A to Figure B? |
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A. |
3 |
B. |
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C. |
2 |
D. |
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Hint |
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19. |
Use the projection method to scale this polygon by a factor 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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20. |
If you want to scale a segment by a factor of 8, how long will the new segment be? |
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A. |
80% of its original size |
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B. |
8 times its original size |
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C. |
 of its original size |
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D. |
64 times its original size |
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Hint |
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