di ketahui f (x) = 4x + 3 dan g bundaran f (x) = 5x - 7 maka fungsi g (x) =

Kelas 10 Matematika
Bab Fungsi Komposisi

(gof) (x) = 5x - 7
g (4x + 3) = 5x - 7
g (4 . x/4 + 3) = 5x - 7
g (x + 3) = 5 . x/4 - 7
g (x - 3 + 3) = 5 (x - 3)/4 - 28/4
g(x) = (5x - 15 - 28)/4
g(x) = (5x - 43)/4