Find the indicated matrix.
-Let $A = \left[ \begin{array} { l l } - 1 & 2 \end{array} \right]$ and $B = \left[ \begin{array} { l l } 1 & 0 \end{array} \right]$. Find $3 A + 4 B$.
A) $\left[ \begin{array} { l l } - 1 & 4 \end{array} \right]$
B) $\left[ \begin{array} { l l } 2 & 2 \end{array} \right]$
C) $\left[ \begin{array} { l l } - 3 & 4 \end{array} \right]$
D) $\left[ \begin{array} { l l } 1 & 6 \end{array} \right]$

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The Answer of Find the indicated matrix.
-Let $A = \left[ \begin{array} { l l } - 1 & 2 \end{array} \right]$ and $B = \left[ \begin{array} { l l } 1 & 0 \end{array} \right]$. Find $3 A + 4 B$.
A) $\left[ \begin{array} { l l } - 1 & 4 \end{array} \right]$
B) $\left[ \begin{array} { l l } 2 & 2 \end{array} \right]$
C) $\left[ \begin{array} { l l } - 3 & 4 \end{array} \right]$
D) $\left[ \begin{array} { l l } 1 & 6 \end{array} \right]$

Find the Indicated Matrix A=[−12]A = \left[ \begin{array} { l l } - 1 & 2 \end{array} \right]A=[−1​2​]

Find the Indicated Matrix $A = \left[ \begin{array} { l l } - 1 & 2 \end{array} \right]$