Mathematics

Problem

For the system of equations 4x − y = 9, 6x + 5y = 2, what is the constant (column) matrix B when the equations are written in the form AX = B? a)

\begin{pmatrix}9\\-2\end{pmatrix}

\begin{pmatrix}9\\2\end{pmatrix}

\begin{pmatrix}2\\9\end{pmatrix}

\begin{pmatrix}-9\\2\end{pmatrix}