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1. |
Which symbol makes the following statement true?
3.25 × 103 ______ 325 |
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A. |
> |
B. |
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C. |
= |
D. |
< |
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2. |
A line of best-fit should not be drawn for which of the following graphs. |
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A. |
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B. |
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C. |
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D. |
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3. |
Which pair of lines graphed below are parallel? |
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A. |
l and m |
B. |
l and n |
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C. |
k and m |
D. |
k and n |
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Hint |
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4. |
What is the slope of the line through the points A(-3, 4) and B(2, -1)? |
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A. |
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B. |
1 |
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C. |
-1 |
D. |
-3 |
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5. |
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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6. |
Find the equation that has direct variation. |
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A. |
y = 0.8x + 9 |
B. |
y = –3x – 1 |
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C. |
y = 4x |
D. |
y = 5x + 1.3 |
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Hint |
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7. |
Which line is parallel to the line listed below?
 |
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A. |
y = 2x - 5 |
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B. |
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C. |
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D. |
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8. |
Which way does the graph of y = –2x2 open? |
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A. |
down |
B. |
up |
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C. |
right |
D. |
left |
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Hint |
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9. |
What is the lowest point on the graph of y = x2 + 2? |
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A. |
(2, 0) |
B. |
(0, –2) |
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C. |
(0, 0) |
D. |
(0, 2) |
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Hint |
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10. |
Two friends are playing catch with a baseball. The ball's flight can be modeled by the equation
y = 1 + 0.6x – 0.08x2, in meters. What is the height of the ball at its highest point? |
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A. |
18.8 m |
B. |
2.13 m |
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C. |
3.78 m |
D. |
1 m |
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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 halves |
B. |
y doubles |
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C. |
y quarters |
D. |
y triples |
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12. |
What is the reciprocal of  ? |
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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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13. |
Consider the equation  . What happens to the value of y when x is divided by 4? |
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A. |
y is added to 4 |
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B. |
y is multiplied by 4 |
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C. |
y is divided by 4 |
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D. |
y is subtracted from 4 |
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14. |
What type of relationship does the equation have if its first differences are constant? |
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A. |
linear |
B. |
constant |
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C. |
cubic |
D. |
quadratic |
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Hint |
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15. |
Find the values for m and n which the conjecture (m – n)2 = m2 – n2 is false. |
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A. |
m = –2, n = 0 |
B. |
m = 1, n = 1 |
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C. |
m = 1, n = 0 |
D. |
m = 1, n = 2 |
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Hint |
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16. |
Identify the decay factor in the equation p = 1,508,069 × 0.89n where p is the bacteria population and n is the number of days after a vaccine was administered. |
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A. |
n |
B. |
p |
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C. |
0.89 |
D. |
1,508,069 |
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Hint |
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17. |
Which equation represents exponential growth? |
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A. |
y = 250 ·  x |
B. |
y = 250 × 0.25x |
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C. |
y = 250 × 4x |
D. |
y = 250 × 0.4c |
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Hint |
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18. |
Which equation represents exponential decay? |
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A. |
y = · 63x |
B. |
y = 63 × 4.4x |
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C. |
y = 63 × 0.4x |
D. |
y = 63 × 4x |
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Hint |
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19. |
The sum of three consecutive even numbers is 54. Find the three numbers. |
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A. |
16, 18, 20 |
B. |
16, 17, 18 |
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C. |
15, 16, 17 |
D. |
18, 19, 20 |
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Hint |
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20. |
How could you use the graph of h = 20t – 6t2 to estimate the solution(s) of 20t – 6t2 = 7, where h stands for height and t stands for time? |
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A. |
Draw a horizontal line at h = 20 and find where it intersects the curve. |
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B. |
Draw a vertical line at t = 7 and find where it intersects the curve. |
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C. |
Draw a vertical line at t = 20 and find where it intersects the curve. |
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D. |
Draw a horizontal line at h = 7 and find where it intersects the curve. |
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Hint |
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