Question

double cone
conic section
cone

1. identify the element of the matrix. $x_{2,4} =$ ___

$x=\begin{bmatrix}0&2&4&6\\\\0&3&6&9\\\\0&4&8&12end{bmatrix}$
9
0
6
4

Explanation:

Step1: Locate row 2 of matrix X

Row 2:

$$\begin{bmatrix} 0 & 3 & 6 & 9 \end{bmatrix}$$

Step2: Select 4th element of row 2

The 4th element in row 2 is 9.

Answer:

9 (Option: 9)