Question

X + 2y = 5

x - 3y = 7

What is the value of the system determinant?

-5
1
5

Answer 1

-5

Explanation:

The given system is

`x + 2y = 5 \\ x - 3y = 7`

The corresponding coefficient matrix is shown in attachment.

The value of the system determinant, is the determinant of the coefficient matrix.

Which is

`- 3 * 1 - 2 * 1 = - 5`