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1. |
Write an augmented matrix for the system of equations. 2x + y = 13
4x - 5y = 8 |
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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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2. |
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A. |
Multiply row 1 by 2 and add to row 2. |
B. |
Multiply row 1 by -2 and add to row 2. |
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C. |
Multiply row 2 by 2 and add to row 1. |
D. |
Add row 1 to row 2. |
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Hint |
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3. |
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A. |
(1, 1, 1) |
B. |
(-40, 9, 16) |
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C. |
(16, 9, -40) |
D. |
-15 |
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Hint |
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4. |
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A. |
4x - 11y + 6z = 8
17x + 4y + z = -3
x + 2y + 12z = 5 |
B. |
4x + 11y + 6z = 8
17x + 4y = 3
2y + 12z = 5 |
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C. |
4x + 11y + 6z = 8
17x + 4y = -3
2x + 12y = 5 |
D. |
4x - 11y + 6z = 8
17x + 4y = -3
2y + 12z = 5 |
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Hint |
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5. |
Solve the system of equations using an augmented matrix. 3x - 7y = 9
4x + 8y = 38 |
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A. |
(-6.5, -1.5) |
B. |
(-6.5, 1.5) |
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C. |
(6.5, 1.5) |
D. |
(7, 1.5) |
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Hint |
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