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1. |
Determine which ordered triple is a solution of the system of equations. 
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A. |
(1, -2, 6) |
B. |
(-1, 2, -16) |
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C. |
(0, 0, 11) |
D. |
(0, 1, -14) |
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Hint |
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2. |
Solve the system of equations. 
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A. |
(7, -2, 1) |
B. |
(13, 0, -4) |
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C. |
(10, -1, 11) |
D. |
(1, -4, 6) |
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Hint |
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3. |
Solve the system of equations. 
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A. |
(0, -2, 7) |
B. |
(1, 1, 2) |
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C. |
no solution |
D. |
infinite number of solutions |
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Hint |
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4. |
What are the solutions to the system y + 2x – 5z = 4, –2y – 4x + 10z = 8, 3y + x – 3z = 5? |
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A. |
(2, 2, –2) |
B. |
(2, 2, 1) |
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C. |
no solution |
D. |
infinite |
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Hint |
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5. |
Solve the system 4y – 6x + 8z = 13, 10y – 15x + 20z = 6, y – 5x + 2z = 5. |
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A. |
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B. |
infinite solutions |
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C. |
no solution |
D. |
(-3, 1, 7) |
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Hint |
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