how do i solve y=-2x

Question

What would be the A, b, and c

Answer 1

IF you mean this as in Ax + By = C (and I'm not sure that you do) then you want to look for coefficients.

 

y = -2x can be rewritten as 2x + y = 0

 

Ax = 2x

 so A = 2

 

By = y

so B = 1

 

C = 0