# How do you find 4X given X=[(4,1), (-2,6)] and Y=[(0,-3)] and Z=[(-1,3), (0,-2)]?

Multiply $4$ with all the elements in $X$.
$4 X = 4 \left[\begin{matrix}4 & 1 \\ - 2 & 6\end{matrix}\right] = \left[\begin{matrix}\textcolor{red}{4} \cdot 4 & \textcolor{red}{4} \cdot 1 \\ \textcolor{red}{4} \cdot - 2 & \textcolor{red}{4} \cdot 6\end{matrix}\right] = \left[\begin{matrix}16 & 4 \\ - 8 & 24\end{matrix}\right]$