F(x) = 1/2x-1 dan g(x) = 2x+4, maka (gof)^-1(10)​

Komposisi fungsi

danFungsiinvers

–

gof(x)= g { f(x) }

= g  [ 1/2 x  - 1 ]

= 2 (1/2 x –  1) + 4

=  x  + 2

gof(x) = x + 2

(gof)⁻¹ (x + 2) = x

x +  2 = 10

x= 8

(gof)⁻¹ (10) =  8