Use the given row transformation to change the matrix as indicated.
-$\left[\begin{array}{rr}
5 & 3 \
10 & 7
\end{array}\right] ;-2 \text { times row } 1 \text { added to row } 2$
A)
$\left[\begin{array}{rr}
5 & 3 \
0 & -1
\end{array}\right]$
B)
$\left[\begin{array}{cr}
-10 & -6 \
0 & 1
\end{array}\right]$
C)
$\left[\begin{array}{ll}
5 & 3 \
1 & 1
\end{array}\right]$
D)
$\left[\begin{array}{ll}
5 & 3 \
0 & 1
\end{array}\right]$

Question

Quizplus · Accepted Answer

-2 times row 1 added to row 2 gives:$\left[\begin{array}{rr}5 & 3 \10 & 7\end{array}\right] \rightarrow \left[\begin{array}{rr}5 & 3 \10-2(5) & 7-2(3)\end{array}\right] = \left[\begin{array}{rr}5 & 3 \0 & 1\end{array}\right]$

Use the Given Row Transformation to Change the Matrix as Indicated