Use Inverses to Solve Matrix Equations
- $$9 x + 8 y = 86$$

Multiple Choice

Use Inverses to Solve Matrix Equations
- $$9 x + 8 y = 86$$
$$4 y = 16$$

A) $$\left[ \begin{array} { l l } 9 & 8 \\0 & 4\end{array} \right] \left[ \begin{array} { l } x \\y\end{array} \right] = \left[ \begin{array} { l } 86 \\16\end{array} \right]B) \quad \left[ \begin{array} { c c } 9 & 8 \\4 & 16\end{array} \right] \left[ \begin{array} { l } x \\y\end{array} \right] = \left[ \begin{array} { l } 86 \\0\end{array} \right] \quadC) \left[ \begin{array} { l l } 4 & 0 \\9 & 8\end{array} \right] \left[ \begin{array} { l } x \\y\end{array} \right] = \left[ \begin{array} { r } 16 \\8\end{array} \right]D) \quad \left[ \begin{array} { l l } 86 & 8 \\16 & 0\end{array} \right] \left[ \begin{array} { l } x \\y\end{array} \right] = \left[ \begin{array} { l } 9 \\4\end{array} \right]$$