Diketahui fungsi f(×)=3×+4 dan fungsi g(×)=×-4/3tentukan nilai ? a. (f0g)(×) b. (f0g)(2)

f (x) = 3x + 4
g (x) = (x - 4) / 3

Nomor A :
fog (x)
= f (g (x))
= f ((x - 4) / 3)
= 3 ((x - 4) / 3) + 4
= x - 4 + 4
= x

Nomor B :
fog (2)
= x
= 2