Exercise4
Shown below are vectors \(\vvec_1\) and \(\vvec_2\text{.}\) Suppose that the matrix \(A\) is
\begin{equation*} A = \left[\begin{array}{rr} \vvec_1 \amp \vvec_2 \end{array}\right] \text{.} \end{equation*}What are the dimensions of the matrix \(A\text{?}\)

On the plot above, indicate the vectors
\begin{equation*} A\twovec{1}{0}, A\twovec{2}{3}, A\twovec{0}{3} \text{.} \end{equation*} Find all vectors \(\xvec\) such that \(A\xvec=\bvec\text{.}\)
Find all vectors \(\xvec\) such that \(A\xvec = \zerovec\text{.}\)