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1. |
Which ordered pair is the solution to the given system of equations?
x - 3y = 9
x - 2y = 5 |
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A. |
(-3, -4) |
B. |
(-6, 1) |
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C. |
(9, -3) |
D. |
(3, -2) |
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Hint |
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2. |
Use the graph below to determine if the given system of equations has one solution, no solution, or infinitely many solutions. If the system has one solution, name it.
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A. |
no solution |
B. |
infinitely many solutions |
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C. |
one solution at  . |
D. |
one solution at (-6, 0) |
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Hint |
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3. |
Graph the system of equations to determine whether it has no solution, infinitely many solutions, or one solution. If the system has one solution, name it.
2x - y = 4
x + 2 y = 2 |
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A. |
no solution |
B. |
infinitely many solutions |
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C. |
one solution at (0, 2) |
D. |
one solution at (2, 0) |
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Hint |
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4. |
Solve the system of equations given by y = 2x + 2 and  . |
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A. |
(-3, -4) |
B. |
infinitely many solutions |
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C. |
no solution |
D. |
(4, -6) |
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Hint |
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5. |
A long distance phone company has a monthly fee of $7.95 and charges a rate of $0.05 per minute. Another long distance company has a monthly fee of $9.95 and charges a rate of $0.03 per minute. At how many minutes would the two companies have equal charges? |
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A. |
150 minutes |
B. |
100 minutes |
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C. |
50 minutes |
D. |
They will never have the same charges. |
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Hint |
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