Write a System of Linear Equations Represented by the Augmented $$\left[ \begin{array} { r r r | r } 4 & 9 & - 4 & - 12 \\9 & 2 & 7 & 6 \\4 & - 2 & 2 & - 1\end{array} \right]$$

question 102

Multiple Choice

Write a system of linear equations represented by the augmented matrix.
- $$\left[ \begin{array} { r r r | r } 4 & 9 & - 4 & - 12 \\9 & 2 & 7 & 6 \\4 & - 2 & 2 & - 1\end{array} \right]$$

• A) \(4 x + 9 y - 4 z = 12\)
• \(9 x + 2 y + 7 z = - 6\)
• \(4 x - 2 y + 2 z = 1\)
• B) \(4 x + 9 y + 4 z = - 12\)
• \(9 x + 2 y - 2 z = 6\)
• \(- 4 x + 7 y + 2 z = - 1\)
• C) \(4 x + 9 y - 4 z = - 12\)
• \(9 x + 2 y + 7 z = 6\)
• \(4 x - 2 y + 2 z = - 1\)
• D) \(4 x = - 12\)
• \(2 y = 6\)
• \(2 z = - 1\)

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