Which one of the following is the variable matrix for the following systems of equations? $\left\{\begin{array}{r}
5 x-2 y+6 z=9 \
6 x+2 z=4 \
2 y=3
\end{array}\right.$
A) $\left[\begin{array}{lll}
x & y & z \
x & y & z \
x & y & z
\end{array}\right]$
B) $\left[\begin{array}{l}
9 \
4 \
3
\end{array}\right]$
C) $\left[\begin{array}{lll}
x & y & z
\end{array}\right]$
D) $\left[\begin{array}{ccc}
5 x & -2 y & 6 z \
6 x & 0 y & 2 z \
0 x & 2 y & 0 z
\end{array}\right]$
E) $\left[\begin{array}{l}
x \
y \
z
\end{array}\right]$

Question

Quizplus · Accepted Answer

The variable matrix for a system of equations is a column matrix containing the variables of the system, which in this case are $x$, $y$, and $z$.

Which One of the Following Is the Variable Matrix for the Following