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1. |
Factor x2 – 8x + 16. |
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A. |
(x + 4)(x – 4) |
B. |
(x - 8)2 |
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C. |
(x - 4)2 |
D. |
(x + 4)2 |
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Hint |
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2. |
The vertex of the graph of the equation y = -x2 + 6x + 1 is |
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A. |
a minimum |
B. |
a maximum |
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C. |
both a maximum and a minimum |
D. |
neither a maximum nor a minimum |
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Hint |
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3. |
What is the equation of the graph shown? |
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 |
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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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4. |
Solve x2 – 6x + 5 = 0 by graphing. |
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A. |
-1 |
B. |
5 |
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C. |
1 |
D. |
1, 5 |
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Hint |
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5. |
A quadratic function has a maximum point at (1, 4). The roots of the related quadratic equation are -1 and 3. Which is the graph of the function? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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6. |
Use the quadratic formula to solve x2 + 2x - 8 = 0. |
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A. |
-2 |
B. |
-4, 2 |
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C. |
-4, -2 |
D. |
-4 |
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Hint |
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7. |
The Mendoza family just bought a house for $180,000. If the value of the house increases at a rate of 3% per year, about how much will it be worth in 10 years? |
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A. |
$234,000 |
B. |
$258,000 |
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C. |
$250,000 |
D. |
$242,000 |
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Hint |
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8. |
Twyla puts $1000 in a savings account that pays 4% interest, compounded monthly. How much money will be in the account 3 years later if she makes no more deposits? |
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A. |
$1010.03 |
B. |
$1120.00 |
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C. |
$1124.86 |
D. |
$1127.27 |
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Hint |
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9. |
Find the 25th term of the arithmetic sequence –1, 3, 7, 11, …. |
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A. |
95 |
B. |
99 |
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C. |
91 |
D. |
103 |
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Hint |
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10. |
Solve x2 – 8x + 16 = 13 by taking the square root of each side. |
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A. |
-4 |
B. |
4 |
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C. |
2 |
D. |
-2 |
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Hint |
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11. |
Solve x2 – 12x + 34 = 0 by taking the square root of each side. |
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A. |
{5, 7} |
B. |
{6} |
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C. |
 |
D. |
 |
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Hint |
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12. |
Which of the following equations will have exactly 1 real root? |
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A. |
9x2 + 12x – 4 |
B. |
x2 – 6x – 9 |
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C. |
4x2 – 8x + 4 |
D. |
2x2 + 5x – 16 |
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Hint |
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13. |
Given the coordinates (0, 3), (1, 11), (2, 19), (3, 27), would a graph of these points exhibit exponential behavior? |
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A. |
no, it would display linear behavior |
B. |
yes, exponential behavior only |
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C. |
yes, exponential and linear behavior |
D. |
no, it would not display exponential or linear behavior |
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Hint |
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14. |
Use a graph to approximate 31.2. |
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A. |
3.12 |
B. |
5.4 |
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C. |
0.27 |
D. |
3.7 |
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Hint |
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