diketahui f(x) = x + 1 dan g(x) = 4x + 10 tentukan komposisi fungsi (f • g)(x) dan (g • f)(x)

f(x) = x + 1
g(x)= 4x+ 10
ditanya : (fog)(x) & (gof)(x) ?.
jawab :
(fog)(x) = f(g(x))
= f(4x + 10)
= (4x + 10) + 1
= 4x + 10 + 1
= 4x + 11
(gof)(x) = g (f(x))
= g (x + 1)
= 4(x+ 1) + 10
= 4x + 4 + 10
= 4x + 14