Jika f(x) = 2x+1 Dan g(x) = 12-x, basil (g•f) (2)...

f(x)=2x+1
g(x)=12-x

(gof)(x)
= g(f(x))
= g(2x+1)
= 12-(2x+1)
= 12-2x-1
= 11+2x

(gof)(2)
= 11+2(2)
= 11+4
= 15

✔Tentukan nilai (g o f) (x) terlebih dahulu

(g o f) (x) = g(f(x)) = g(2x + 1)
(g o f) (x) = 12 - (2x +1)

Maka (g o f) (2) adalah '
= 12 - (2x + 1)
= 12 - (2(2) + 1)
= 12 - 5
= 7

Jawaban D