Find x and y. $\left[ \begin{array} { c c }
- 6 & x \
y & 7
\end{array} \right] = \left[ \begin{array} { c c }
- 6 & - 4 \
- 9 & 7
\end{array} \right]$
A)x = 4, y = 9
B)x = -6, y = 7
C)x = -9, y = -4
D)x = -4, y = -9
E)x = -4, y = -4

Question

Find x and y. $\left[ \begin{array} { c c } 
- 6 & x \
y & 7
\end{array} \right] = \left[ \begin{array} { c c } 
- 6 & - 4 \
- 9 & 7
\end{array} \right]$
A)x = 4, y = 9
B)x = -6, y = 7
C)x = -9, y = -4
D)x = -4, y = -9
E)x = -4, y = -4

Quizplus · Accepted Answer

For two matrices to be equal, their corresponding elements must be equal. Comparing the given matrices, we find x = -4 and y = -9.

Find X and Y [−6xy7]=[−6−4−97]\left[ \begin{array} { c c } - 6 & x \\y & 7\end{array} \right] = \left[ \begin{array} { c c } - 6 & - 4 \\- 9 & 7\end{array} \right][−6y​x7​]=[−6−9​−47​]

Find X and Y $\left[ \begin{array} { c c } - 6 & x \\y & 7\end{array} \right] = \left[ \begin{array} { c c } - 6 & - 4 \\- 9 & 7\end{array} \right]$