Question

-x+2y=2 write the equation using functional notation

Answer 1

Solve for y and replace it with f(x).

-x+2y=2
2y=x+2
y=(1/2)x+1
f(x)=(1/2)x+1

Answer 2

thanks, I got that right but don't understand how you got f()=(1/2)x+1