diketahui f(x)=2x-7 dan g(x)=9-4x tentukan (gof) (x) ?

(gof)(x)=g(f(x))
=g(2x-7)
=9-4(2x-7)
=9-8x+28
=37-8x

Materi FUNGSI KOMPOSISI

gof(x) = g(f(x))
= g(2x- 7) = 9 - 4(2x-7) = 9 - 8x + 28 = 37 - 8x