if y = (x+2)/(x+8), (notice I assumed you have a typo)
the inverse would be
x = (y+2)/(y+8)
sub in x = -4 and solve for y
(I get f^-1(-4) = -34/5)
let f(x)=x+2/x+8. what does f^-1(-4) equal?
2 answers
yes it is. Thank you very much for your help.