Give the order of the matrix, and identify the given element of the matrix.
-$$\left[ \begin{array} { c c c c }
- 1 & 9 & 5 & 13 \
- 13 & 7 & - 15 & - 10
\end{array} \right] ; a _ { 12 }$$
A) $2 \times 4 ; 9$
B) $4 \times 2 ; 9$
C) $2 \times 4 ; - 13$
D) $4 \times 2 ; - 13$

Question

Give the order of the matrix, and identify the given element of the matrix.
-$$\left[ \begin{array} { c c c c } 
- 1 & 9 & 5 & 13 \
- 13 & 7 & - 15 & - 10
\end{array} \right] ; a _ { 12 }$$
A) $2 \times 4 ; 9$
B) $4 \times 2 ; 9$
C) $2 \times 4 ; - 13$
D) $4 \times 2 ; - 13$

Quizplus · Accepted Answer

The matrix has 2 rows and 4 columns, making it a $2 \times 4$ matrix. The element $a_{12}$ refers to the element in the first row and second column, which is 9.

Give the Order of the Matrix, and Identify the Given [−19513−137−15−10];a12\left[ \begin{array} { c c c c } - 1 & 9 & 5 & 13 \\- 13 & 7 & - 15 & - 10\end{array} \right] ; a _ { 12 }[−1−13​97​5−15​13−10​];a12​

Give the Order of the Matrix, and Identify the Given $\left[ \begin{array} { c c c c } - 1 & 9 & 5 & 13 \\- 13 & 7 & - 15 & - 10\end{array} \right] ; a _ { 12 }$