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

question 11

Multiple Choice

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

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

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