Scalar times 2×2 matrix (ACT) practice

Multiply every entry by $4$: $\begin{bmatrix} 4(2) & 4(1) \ 4(0) & 4(3) \end{bmatrix} = \begin{bmatrix} 8 & 4 \ 0 & 12 \end{bmatrix}$.

Multiply each entry by $-3$: $\begin{bmatrix} -3(2) & -3(-1) \ -3(3) & -3(0) \end{bmatrix} = \begin{bmatrix} -6 & 3 \ -9 & 0 \end{bmatrix}$.

Multiply every entry by $5$: $\begin{bmatrix} 5(0) & 5(2) \ 5(1) & 5(-1) \end{bmatrix} = \begin{bmatrix} 0 & 10 \ 5 & -5 \end{bmatrix}$.

Multiply each entry by $-1$: $\begin{bmatrix} -1(3) & -1(4) \ -1(-2) & -1(5) \end{bmatrix} = \begin{bmatrix} -3 & -4 \ 2 & -5 \end{bmatrix}$.

Multiply every entry by $2$: $\begin{bmatrix} 2(-1) & 2(3) \ 2(2) & 2(4) \end{bmatrix} = \begin{bmatrix} -2 & 6 \ 4 & 8 \end{bmatrix}$.

Multiply every entry by $3$: $\begin{bmatrix} 3(-2) & 3(1) \ 3(0) & 3(-3) \end{bmatrix} = \begin{bmatrix} -6 & 3 \ 0 & -9 \end{bmatrix}$.

Multiply each entry by $-4$: $\begin{bmatrix} -4(1) & -4(0) \ -4(-3) & -4(2) \end{bmatrix} = \begin{bmatrix} -4 & 0 \ 12 & -8 \end{bmatrix}$.

Multiply each entry by $-5$: $\begin{bmatrix} -5(2) & -5(-2) \ -5(1) & -5(3) \end{bmatrix} = \begin{bmatrix} -10 & 10 \ -5 & -15 \end{bmatrix}$.