Write the Matrix in Reduced Row-Echelon Form $$\left[ \begin{array} { r r r r } 9 & - 6 & - 3 & - 33 \\8 & - 1 & 1 & - 47 \\- 7 & - 7 & 6 & - 8\end{array} \right]$$

question 146

Multiple Choice

Write the matrix in reduced row-echelon form. $$\left[ \begin{array} { r r r r } 9 & - 6 & - 3 & - 33 \\8 & - 1 & 1 & - 47 \\- 7 & - 7 & 6 & - 8\end{array} \right]$$

• A) \(\left[ \begin{array} { l l l l }
• 1 & 0 & 0 & 0 \\
• 0 & 1 & 0 & 0 \\
• 0 & 0 & 1 & 0
• \end{array} \right]\)
• B) \(\left[ \begin{array} { l l l r }
• 1 & 0 & 0 & - 5 \\
• 0 & 1 & 0 & - 6 \\
• 0 & 0 & 1 & 1
• \end{array} \right]\)
• C) \(\left[ \begin{array} { r r r r }
• 1 & 0 & 0 & - 6 \\
• 0 & 1 & 0 & 2 \\
• 0 & 0 & 1 & - 6
• \end{array} \right]\)
• D) \(\left[ \begin{array} { r r r r }
• 1 & 0 & 0 & - 5 \\
• 0 & 1 & 0 & 1 \\
• 0 & 0 & 1 & - 6
• \end{array} \right]\)
• E) \(\left[ \begin{array} { l l l l }
• 1 & 0 & 0 & 1 \\
• 0 & 1 & 0 & 1 \\
• 0 & 0 & 1 & 1
• \end{array} \right]\)

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