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1. |
Kurt is saving to buy a new computer. The computer he wants costs $1299. He has already saved $732. Write an inequality to determine the least amount he must still save. |
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A. |
732 + s  1299 |
B. |
732 + s  1299 |
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C. |
1299 + s 732 |
D. |
1299 + s 732 |
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Hint |
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2. |
Use elimination to solve the system of equations.
-x + 2y = 18
x + 8y = -38 |
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A. |
(-22, -2) |
B. |
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C. |
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D. |
(-5, -1) |
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Hint |
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3. |
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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4. |
Which ordered pair is a solution of y < -4x - 5? |
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A. |
(2, 3) |
B. |
(-7, 0) |
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C. |
(1, -3) |
D. |
(0, 6) |
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Hint |
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5. |
Find a solution to the equation using backtracking.
 |
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A. |
a = –2 |
B. |
a = 3 |
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C. |
a = 2 |
D. |
a = 5 |
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Hint |
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6. |
Find a solution to the equation using backtracking.
 |
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A. |
n = –89 |
B. |
n = –100 |
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C. |
n = 10 |
D. |
n = –12 |
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Hint |
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7. |
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. On its way up, it reached a particular height at 1 second. On its way down, it again reached the same height. At approximately what time did it reach that height the second time? |
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A. |
4.2 seconds |
B. |
2.0 seconds |
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C. |
5.2 seconds |
D. |
3.5 seconds |
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Hint |
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8. |
Use you calculator's Table feature to approximate the solutions to the nearest hundredth.
x(x – 7) = 36 |
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A. |
x = 11.00, x = –2.01 |
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B. |
x = 3.26, x = 6.31 |
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C. |
x = –15.96, x = –1.15 |
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D. |
x = 10.45, x = –3.45 |
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Hint |
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