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1. |
Sarah must maintain a balance of at least $500 in her checking account to avoid finance charges. If her current balance is $794, write an inequality to determine how many times she can withdraw $25 for shopping without paying finance charges. |
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A. |
25w  794 |
B. |
25w 294 |
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C. |
25w 500 |
D. |
25w 106 |
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Hint |
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2. |
Use elimination to solve the system of equations shown below.
2x - 4y = -5
3x + 4y = -15 |
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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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3. |
Which ordered pair is a solution of y < -4x - 5? |
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A. |
(1, -3) |
B. |
(-7, 0) |
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C. |
(0, 6) |
D. |
(2, 3) |
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Hint |
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4. |
Find a solution to the equation using backtracking.
 |
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A. |
a = 2 |
B. |
a = –2 |
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C. |
a = 3 |
D. |
a = 5 |
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Hint |
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5. |
Find a solution to the equation using backtracking.
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A. |
c = 8 |
B. |
c = –14 |
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C. |
c = 2 |
D. |
c = –1 |
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Hint |
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6. |
A ball is launched straight up from ground level modeling the equation h = 52t – 10t2, where h stands for height in meters and t stands for time. What is the approximate value of t when the ball hits the ground? |
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A. |
2.6 seconds |
B. |
6.0 seconds |
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C. |
0 seconds |
D. |
5.2 seconds |
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Hint |
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7. |
Use you calculator's Table feature to approximate the solutions to the nearest hundredth.
4x(x + 2) = 12 |
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A. |
x = 1, x = –3 |
B. |
x = 2, x = –2 |
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C. |
x = 0, x = –4 |
D. |
x = –1, x = –4 |
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Hint |
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8. |
Use a graph to solve the system of equations.
y = x2
y = –x + 2 |
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A. |
(1, 1), (4, –2) |
B. |
(4, 1), (1, –2) |
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C. |
(–2, 1), (1, 4) |
D. |
(–2, 4), (1, 1) |
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Hint |
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