Identify the Elementary Row Operation Being Performed to Obtain the New

question 43

Multiple Choice

Identify the elementary row operation being performed to obtain the new rowequivalent matrix.
$\begin{array} { l r } \text { Original Matrix } & \text { New Row-Equivalent Matrix } \\ { \left[ \begin{array} { c c c } 7 & 6 & 6 \\ 1 & 4 & - 6 \end{array} \right] } & { \left[ \begin{array} { c c c } 12 & 26 & - 24 \\ 1 & 4 & - 6 \end{array} \right] } \end{array}$

• A) Add 5 times \(R _ { 1 }\) to \(R _ { 2 }\).
• B) Add \(- 5\) times \(R _ { 2 }\) to \(R _ { 1 }\).
• C) Add \(- 5\) times \(R _ { 1 }\) to \(R _ { 2 }\).
• D) Add 5 times \(R _ { 1 }\) to \(R _ { 1 }\).
• E) Add 5 times \(R _ { 2 }\) to \(R _ { 1 }\).

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