Question

write the coefficient for the matrix for the system use it to determine if the system has a unique solution
-5x+7y= -9
5x-7y=-5

Answer 1

If we have -5x+7y, then the coefficients are the numbers in front of the variables. So the coefficients are -5 and 7

Answer 2

For

5x-7y=-5

the coefficients are

5 and -7

Answer 3

Use these coefficients to make a 2x2 matrix

Answer 4

No inverse exist so no unique solution right

Answer 5

you are correct, the determinant is 0, which means that there are either no solutions or infinitely many solutions

Answer 6

thanks :)

Answer 7

yw