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1. |
Simplify (3a4b5c)4. |
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A. |
12a8b9c5 |
B. |
7a16b20c4 |
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C. |
81a16b20c4 |
D. |
3a16b20c4 |
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Hint |
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2. |
Find a number that when squared equals 484. |
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A. |
-22 only |
B. |
22 only |
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C. |
22 or -22 |
D. |
None of these is correct |
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Hint |
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3. |
The graph of y = -4x2 - 1 is _____. |
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A. |
None of these is correct. |
B. |
a parabola |
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C. |
a straight line |
D. |
a circle |
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Hint |
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4. |
The greatest power in a quadratic function is ______. |
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A. |
1 |
B. |
2 |
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C. |
4 |
D. |
3 |
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Hint |
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5. |
Which characteristic describes a graph that is linear and has direct variation. |
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A. |
The equation has the form y = mx. |
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B. |
The graph does not pass through (0, 0). |
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C. |
The equation has the form y = mx + b. |
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D. |
Variables x and y are not proportional. |
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Hint |
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6. |
Find the equation that has direct variation. |
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A. |
y = 4x |
B. |
y = –3x – 1 |
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C. |
y = 0.8x + 9 |
D. |
y = 5x + 1.3 |
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Hint |
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7. |
Which three points are collinear? |
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A. |
(–5, –3), (–2, 3), (2, –4) |
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B. |
(4, –3), (2, –2), (–4, 1) |
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C. |
(3, 1), (4, 0), (–1, 2) |
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D. |
(–1, 1), (2, 3), (5, 2) |
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Hint |
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8. |
Find the graph of y = x2 + 1. |
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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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9. |
Which equation is in the same family as y = x2? |
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A. |
y = x2 – 3 |
B. |
y = 2x2 – 3 |
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C. |
y = x3 – 3 |
D. |
y = 2x – 3 |
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Hint |
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10. |
Find a quadratic equation for the table. |
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A. |
y = 5x2 – 1 |
B. |
y = x2 – 5 |
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C. |
y = 5x2 + 1 |
D. |
y = 5x2 – 2 |
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Hint |
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11. |
Find the equation of the graph below. |
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A. |
y = x2 + 3 |
B. |
y = x2 – 3 |
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C. |
y = (x + 3)2 |
D. |
y = (x - 3)2 |
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Hint |
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12. |
Find the cubic equation. |
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A. |
y = x2 + 5 |
B. |
y = 3x |
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C. |
y = 5x3 + 2x |
D. |
y = x(x3 + 1) |
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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 divided by 4 |
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C. |
y is subtracted from 4 |
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D. |
y is multiplied by 4 |
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Hint |
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14. |
Find which equation does not represent a reciprocal relationship. |
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A. |
 |
B. |
ab = 3 |
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C. |
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D. |
–6 = ef |
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Hint |
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15. |
How does a affect graphs of equations in the form of ? |
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A. |
a affects the width of the graph |
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B. |
a affects the length of the graph |
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C. |
negative values of a move the graph to the left, positive values move it to the right |
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D. |
positive values of a move the graph to the left, negative values move it to the right |
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Hint |
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16. |
Consider the following conjecture. If an even number is written 2k, where k is a whole number, then 2k + 1 must be an odd number. What can be your next course of action in dealing with this conjecture? |
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A. |
test every possible case to prove the conjecture |
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B. |
find a counterexample to disprove the conjecture |
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C. |
all answers are correct |
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D. |
develop an argument to prove the conjecture |
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Hint |
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17. |
Use the following table to find the population of bacteria in hour n. |
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A. |
30,0006n |
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B. |
6 × 30,000 n |
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C. |
30,000 × 66 |
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D. |
180,000n |
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Hint |
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18. |
Identify the growth factor in the equation p = 682,363 × 1.08n where p is the population and n is the number of years after 2001. |
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A. |
n |
B. |
p |
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C. |
682,363 |
D. |
1.08 |
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Hint |
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19. |
Which equation represents exponential growth? |
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A. |
y = 250 × 4x |
B. |
y = 250 × 0.4c |
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C. |
y = 250 · x |
D. |
y = 250 × 0.25x |
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Hint |
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20. |
Find the table that does not represent an exponential equation. |
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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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