Write the System of Equations Associated with the Augmented Matrix $\left[ \begin{array} { r r r } 4 & 9 & 15 \\ 16 & 19 & 7 \end{array} \right]$

Multiple Choice

Write the system of equations associated with the augmented matrix. Do not solve.
- $\left[ \begin{array} { r r r } 4 & 9 & 15 \\ 16 & 19 & 7 \end{array} \right]$

A) $4 x + 9 y = 15$
$19 x + 16 y = 7$
B) $4 x + 9 y = - 15$
$16 x + 19 y = - 7$
C) $4 x + 9 y = 15$
$16 x + 19 y = 7$
D) $9 x + 4 y = 15$
$16 x + 19 y = 7$