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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. |
(-1, 2) |
B. |
(0, 2) |
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C. |
(2, -1) |
D. |
(2, 0) |
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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. |
35 items |
B. |
30 items |
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C. |
45 items |
D. |
40 items |
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Hint |
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3. |
The cost function for a company to produce x items is y = 22.5 + 2x and the revenue function is y = 2.5x. If the profit is the revenue minus the cost, what is the profit at the break-even point? |
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A. |
$112.50 |
B. |
$63 |
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C. |
$0 |
D. |
$75 |
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Hint |
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4. |
Find the solution of the system y = x + 2 and y = -1 x + 4. |
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A. |
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B. |
(-2, 7) |
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C. |
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D. |
(1, 3) |
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Hint |
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5. |
Solve the system y =  x – 3 and y = x + 2 by graphing. |
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A. |
No solution |
B. |
(3, -1) |
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C. |
(3, 4) |
D. |
coordinates of all points on the graph of y = x – 3. |
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Hint |
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