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1. |
Graph the system of equations y = 3x + 2 and y = 2 - x. Then find the solution of the system. |
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A. |
(0, 2) |
B. |
(-1, 2) |
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C. |
(2, 0) |
D. |
(2, -1) |
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Hint |
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2. |
The cost function for a company to produce x items is y = 56 + 2x and the revenue function is y = 3.6x. Graph the system of equations, and find the break-even point. |
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A. |
45 items |
B. |
40 items |
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C. |
35 items |
D. |
30 items |
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Hint |
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3. |
Find the solution of the system y = -3x + 2 and y = -1.5x + 5. |
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A. |
(-2, 8) |
B. |
(-3, 9.5) |
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C. |
(2, 8) |
D. |
(-1, 5) |
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Hint |
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4. |
Solve the system y =  x + 3 and y = x – 1 by graphing. |
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A. |
no solution |
B. |
(8, 7) |
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C. |
(-2, 2) |
D. |
(4, 5) |
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Hint |
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5. |
Solve the system y =  x + 1 and x = 10 by substitution. |
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A. |
(10, 7) |
B. |
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C. |
(10, -7) |
D. |
(10, 9) |
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Hint |
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