Identify the Elementary Row Operation Being Performed to Obtain the New

question 20

Multiple Choice

Identify the elementary row operation being performed to obtain the new row-equivalent matrix. ​
Original Matrix New Row-Equivalent Matrix $$\left[ \begin{array} { r r r } 4 & - 1 & - 5 \\- 5 & 4 & 9\end{array} \right]$$ $$\left[ \begin{array} { r r r } 4 & - 1 & - 5 \\11 & 0 & - 11\end{array} \right]$$ ​

• A)Add 4 times Row 2 to Row 1.
• B)Add 5 times Row 2 to Row 1.
• C)Add 9 times Row 1 to Row 2.
• D)Add 4 times Row 1 to Row 2.
• E)Add 5 times Row 1 to Row 2.

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