jika gof(x) 4x+2 dan g(x) x-1 maka nilai fog(3)

Komposisi fungsi

gof(x)= 4x + 2
g(x)= x - 1
g { f(x)} = 4x +2
f(x)  - 1 = 4x + 2
f(x)= 4x + 3

fog(3) = f {g(3)}
fog(3) = 4. g(3) + 3
fog(3) = 4. (3-1) + 3
fog(3) = 4(2)+ 3
fog(3)= 11