The Matrix Is the Reduced Echelon Matrix for a System $$\left[ \begin{array} { l l l l | r } 1 & 0 & 0 & 0 & - 3 \\0 & 1 & 0 & 0 & - 3 \\0 & 0 & 1 & 0 & 15 \\0 & 0 & 0 & 1 & - 6\end{array} \right]$$

question 134

Multiple Choice

The matrix is the reduced echelon matrix for a system with variables x 1 , x 2 , x 3 , and x 4 . Find the solution set of the system. $$\left[ \begin{array} { l l l l | r } 1 & 0 & 0 & 0 & - 3 \\0 & 1 & 0 & 0 & - 3 \\0 & 0 & 1 & 0 & 15 \\0 & 0 & 0 & 1 & - 6\end{array} \right]$$

• A) ( \(-\) 3, \(-\) 3, 15, \(-\) 6)
• B) ( \(-\) 3, \(-\) 1, 15, \(-\) 3)
• C) (0, \(-\) 3, 15, \(-\) 8)
• D) ( \(-\) 6, \(-\) 1, 17, \(-\) 3)
• E) inconsistent

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