Answer
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Work Step by Step
Given \begin{array}{l}{a_{1}=[-2,0,4,-1,-1]} \\{a_{2}=[9,-4,-4,0,8]} \end{array}
So, The appropriate matrix for the given row vectors is:
\begin{array}{l}{\qquad A=\left[\begin{array}{llll}{-2} &\ \ \ {0}&\ \ \ \ {4}&{-1}&{-1} \\{9} & {-4}&{-4}&\ \ \ {0}& \ \ \ {8}\end{array}\right]}
\end{array}
The column vectors for this matrix are:
\begin{array}{l}
{\qquad \mathbf{b}_{1}=\left[\begin{array}{l}{-2} \\ \ \ \ {9} \\
\end{array}\right]}\\
{\qquad \mathbf{b}_{2}=\left[\begin{array}{l}{\ \ \ 0} \\ {-4} \\
\end{array}\right]}
{\qquad \mathbf{b}_{3}=\left[\begin{array}{l}\ \ \ {4} \\ {-4} \\
\end{array}\right]}\\
{\qquad \mathbf{b}_{4}=\left[\begin{array}{l}{-1} \\\ \ \ {0} \\
\end{array}\right]} {\qquad \mathbf{b}_{5}=\left[\begin{array}{l}{-1} \\ \ \ {8} \\
\end{array}\right]}\\
\end{array}
