Scalar Multiplication of Matrices Practice Test

$$\begin{bmatrix}2 & 1\\ 0 & 3\end{bmatrix}$$

$$\begin{bmatrix}2 & -1\\ 0 & 3\end{bmatrix}$$

$$\begin{bmatrix}8 & -4\\ 0 & 12\end{bmatrix}$$

$$\begin{bmatrix}\tfrac{9}{2} & -\tfrac{3}{2}\\ \tfrac{1}{2} & \tfrac{13}{2}\end{bmatrix}$$