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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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Hint |
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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. |
 |
B. |
 |
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C. |
 |
D. |
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3. |
Which equation is the slope-intercept form of the equation of the line that passes through (1, 2) and is parallel to 4x - 2y = 6? |
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A. |
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B. |
y = 4x + 3 |
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C. |
y = 2x |
D. |
y = -2x + 1 |
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Hint |
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4. |
Simplify (7a4b) (8a7b6). |
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A. |
15a28b6 |
B. |
56a11b7 |
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C. |
56a28b6 |
D. |
15a11b7 |
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Hint |
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5. |
Evaluate  . Express the result in scientific notation. |
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A. |
8.0 × 10-9 |
B. |
0.8 × 10-8 |
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C. |
8.0 × 10-7 |
D. |
80 × 10-8 |
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Hint |
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6. |
What is the slope of the line through the points A(-3, 4) and B(2, -1)? |
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A. |
 |
B. |
1 |
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C. |
-1 |
D. |
-3 |
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Hint |
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7. |
Find  . |
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A. |
15 |
B. |
14 |
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C. |
-14 |
D. |
-15 |
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Hint |
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8. |
Find a number that when squared equals 484. |
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A. |
22 or -22 |
B. |
-22 only |
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C. |
22 only |
D. |
None of these is correct |
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Hint |
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9. |
What is the equation of the graph shown? |
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A. |
y = x2 - 2x + 1 |
B. |
y = -x2 - 2x - 1 |
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C. |
y = x2 + 2x + 1 |
D. |
y = -x2 +2x - 1 |
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Hint |
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10. |
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. |
The temperature that begins at 0°F at 6:00 a.m. rises 3°F every hour for 6 hours. |
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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. |
An airplane that begins at 20,000 feet and descends for a landing on the ground at the airport. |
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Hint |
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11. |
Michael just got a job mowing his elderly neighbor's lawn paying him $10 each week. Draw a graph showing the amount he receives is increasing very rapidly. Suppose you graph the time in weeks on the horizontal axis and the amount Michael receives on the vertical axis. |
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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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12. |
Pam's mother gives Pam $20 each week for lunch to be bought at the school cafeteria. Lunches cost $4 per day. Draw a graph showing the amount Pam has left decreasing very slowly. Suppose you graph the time in days on the horizontal axis and the amount Pam has left on the vertical axis. |
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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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13. |
Which way does the graph of y = –2x2 open? |
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A. |
up |
B. |
left |
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C. |
right |
D. |
down |
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Hint |
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14. |
How many diagonals does a 25-sided polygon have? |
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A. |
300 |
B. |
25 |
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C. |
275 |
D. |
550 |
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Hint |
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15. |
Find the cubic equation. |
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A. |
y = x2 + 5 |
B. |
y = 5x3 + 2x |
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C. |
y = x(x3 + 1) |
D. |
y = 3x |
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Hint |
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16. |
What is the reciprocal of –20? Evaluate it in decimal form. |
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A. |
–0.50 |
B. |
–0.05 |
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C. |
–0.02 |
D. |
–0.20 |
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Hint |
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17. |
What type of relationship does the equation have if its first differences are constant? |
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A. |
quadratic |
B. |
constant |
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C. |
cubic |
D. |
linear |
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Hint |
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18. |
Use the following table to find the population of bacteria in hour n. |
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A. |
30,000 × 66 |
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B. |
30,0006n |
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C. |
6 × 30,000 n |
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D. |
180,000n |
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Hint |
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19. |
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. |
0.89 |
B. |
n |
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C. |
1,508,069 |
D. |
p |
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Hint |
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20. |
Evaluate. |
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A. |
2 |
B. |
–3 |
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C. |
3 |
D. |
–2 |
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Hint |
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