Use the indicated row operation to change the matrix.
-Replace $ R_{2} $ by $ R_{1}+R_{2} $.
$ \left[\begin{array}{rr|r}1 & 0 & 2 \ -1 & 1 & 3\end{array}\right] $
A) $ \left[\begin{array}{ll|l}1 & 0 & 2 \ 0 & 0 & 5\end{array}\right] $
B) $ \left[\begin{array}{rr|r}1 & 0 & 2 \ -1 & 1 & 3\end{array}\right] $
C) $ \left[\begin{array}{rr|r}0 & 1 & 5 \ -1 & 1 & 3\end{array}\right] $
D) $ \left[\begin{array}{ll|l}1 & 0 & 2 \ 0 & 1 & 5\end{array}\right] $

Question

Quizplus · Accepted Answer

Adding $ R_{1} $ to $ R_{2} $ results in the second row becoming $0, 1, 5$, which matches option D.

Use the Indicated Row Operation to Change the Matrix R2 R_{2} R2​

Use the Indicated Row Operation to Change the Matrix $R_{2}$