Question

30 POINTZ

What is the determinant of the coefficient matrix of this system?

Answer 1

Explanation: When the determinant of the coefficient matrix of a system of linear equations equals zero it means that at least one equation in the system is a scalar multiple of another equation. Hence it is not possible to find the inverse matrix and so the system cannot be solved.

Explanation:

Answer 2

Determinant of matrix = 12

Explanation:

rewrite this system with matrices

[{4 , -3]

[8, -3]]

determinant = 4*(-3) - (-3)*8 = -12 + 24 = 12

are you finding the inverse too?

the system should look like A* v = C

where matrix A is

[{4 , -3]

[8, -3]]

and V = [x , y] vector

C = [-8, 12] vector