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1. |
Write an inequality for the sentence three times a number is less than 45. |
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A. |
3x > 45 |
B. |
3x  45 |
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C. |
3 + x < 45 |
D. |
3x < 45 |
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Hint |
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2. |
Which inequality is graphed below? |
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A. |
y < 8 |
B. |
y > 8 |
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C. |
y < 8 |
D. |
x < 8 |
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Hint |
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3. |
Which graph represents the solution to x + 4 > -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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4. |
Select the letter that has one line of symmetry. |
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A. |
G |
B. |
J |
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C. |
F |
D. |
A |
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Hint |
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5. |
Simplify (3a4b5c)4. |
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A. |
7a16b20c4 |
B. |
12a8b9c5 |
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C. |
3a16b20c4 |
D. |
81a16b20c4 |
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Hint |
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6. |
Find  . |
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A. |
14 |
B. |
-15 |
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C. |
-14 |
D. |
15 |
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Hint |
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7. |
If a rocket is fired from the ground with an initial velocity of 75 meters per second, then the height of the rocket after t seconds is h = 75t - 4.9t2. Find the height of the rocket after 3 seconds. |
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A. |
221.6 meters |
B. |
130.4 meters |
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C. |
252.5 meters |
D. |
180.9 meters |
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Hint |
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8. |
The greatest power in a quadratic function is ______. |
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A. |
4 |
B. |
1 |
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C. |
2 |
D. |
3 |
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Hint |
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9. |
Simplify  |
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A. |
 |
B. |
 |
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C. |
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D. |
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Hint |
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10. |
Which characteristic describes a graph that is linear and has direct variation. |
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A. |
Variables x and y are not proportional. |
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B. |
The equation has the form y = mx. |
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C. |
The graph does not pass through (0, 0). |
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D. |
The equation has the form y = mx + b. |
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Hint |
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11. |
What is the lowest point on the graph of y = x2 + 2? |
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A. |
(0, 2) |
B. |
(0, 0) |
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C. |
(2, 0) |
D. |
(0, –2) |
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Hint |
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12. |
Which equation is in the same family as y = x2? |
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A. |
y = x2 – 3 |
B. |
y = x3 – 3 |
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C. |
y = 2x2 – 3 |
D. |
y = 2x – 3 |
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Hint |
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13. |
Find the equation of the graph below. |
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A. |
y = (x + 3)2 |
B. |
y = x2 + 3 |
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C. |
y = (x - 3)2 |
D. |
y = x2 – 3 |
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Hint |
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14. |
Consider the equation xy = 3. What happens to the value of y when x doubles? |
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A. |
y halves |
B. |
y doubles |
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C. |
y triples |
D. |
y quarters |
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Hint |
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15. |
In the relationship  , why is y inversely proportional to x? |
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A. |
8 is divided into x |
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B. |
the product of xy is a constant, 8 |
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C. |
the relationship is undefined at x = 0 |
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D. |
8 is divided into y |
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Hint |
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16. |
How does b affect graphs of equations in the form of  ? |
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A. |
b affects the length of the graph |
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B. |
b affects the width of the graph |
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C. |
positive values of b move the graph to the left, negative values move it to the right |
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D. |
negative values of b move the graph to the left, positive values move it to the right |
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Hint |
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17. |
What type of relationship does the equation have if its second differences are constant? |
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A. |
cubic |
B. |
constant |
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C. |
linear |
D. |
quadratic |
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Hint |
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18. |
Suppose your parents buy a new car for $21,000. What will the value of the car be in 5 years if the car depreciates by 10% each year.? |
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A. |
$10,044 |
B. |
$11,160 |
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C. |
$12,400 |
D. |
$15,309 |
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Hint |
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19. |
What two things does a vector contain? |
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A. |
length and width |
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B. |
angle of rotation and distance |
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C. |
direction and rotational symmetry |
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D. |
distance and direction |
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Hint |
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20. |
Find the correct representation of a translation. |
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A. |
 |
B. |
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C. |
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D. |
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Hint |
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