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1. |
Find the coordinates of the vertex of the graph of the equation
y = x2 - 5x + 7. |
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A. |
(5, 7) |
B. |
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C. |
(0, 7) |
D. |
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Hint |
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2. |
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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3. |
The equation x2 + 1 = -3x does not have integral roots. State the consecutive integers between which the roots lie. |
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A. |
between -3 and -2 and between 0 and 1 |
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B. |
between -3 and -2 and between -1 and 0 |
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C. |
between -1 and 0 and between 0 and 1 |
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D. |
between 0 and 1 and between 2 and 3 |
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Hint |
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4. |
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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5. |
Approximate 5(31.8) to the nearest hundredth. |
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A. |
29.16 |
B. |
36.12 |
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C. |
32.90 |
D. |
27.42 |
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Hint |
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6. |
Which is the graph of y = 2.5x? |
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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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7. |
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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8. |
If a $5000 piece of equipment looses value at a rate of 5% per year, how much will it be worth after 5 years? |
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A. |
$3868.90 |
B. |
$6381.41 |
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C. |
$4279.35 |
D. |
$4011.62 |
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Hint |
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9. |
Solve x2 - 4x + 1 = 0 by completing the square. |
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A. |
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B. |
1, 3 |
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C. |
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D. |
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Hint |
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10. |
When using a quadratic equation of the form ax2 + bx + c = 0 to find distances, what should always be ignored? |
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A. |
any positive solution |
B. |
any solution if  is negative |
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C. |
any negative solution |
D. |
any solution if a is negative |
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Hint |
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11. |
Which method of solving quadratic equations should be used when only an estimated solution is necessary? |
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A. |
graphing |
B. |
factoring |
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C. |
quadratic formula |
D. |
completing the square |
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Hint |
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12. |
How many real roots are there for the equation 2x2 + 6x + 3? |
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A. |
2 |
B. |
0 |
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C. |
1 |
D. |
cannot be determined from given information |
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Hint |
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13. |
What are the next three terms of the geometric sequence 4, 10, 25,…? |
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A. |
100, 400, 1600 |
B. |
100, 250, 1000 |
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C. |
62.5, 312.5, 1562.5 |
D. |
62.5, 156.25, 390.625 |
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Hint |
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14. |
A formula in which the nth term of a sequence is expressed in terms of the previous term, as in  is called what? |
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A. |
exponential |
B. |
dependent |
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C. |
geometric |
D. |
recursive |
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Hint |
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