& -2 \\ -3 & 5 & -5 & 2 & -1 \\ 0 & 1 & -1 & 2 & 8 \\ -7 & 6 & -3 & -4 & 0 \\ -6 & 0 & 4 & -3 & 1 \end{array}\right] \mathbf{x}+\left[\begin{array}{l} 2 \\ 7 \\ 8 \\ 5 \\ 4 \end{array}\right]\\ &y=\left[\begin{array}{lllll} 1 & -2 & -9 & 7 & 6 \end{array}\right] \mathbf{x} \end{aligned}
Fig: 1
Fig: 2