f (×)=3×+1 g (×)=×+5 tentukan fog (x)

Kelas 10 Matematika
Bab Fungsi Komposisi

(fog) (x) = f (x + 5)
(fog) (x) = 3 (x + 5) + 1
(fog) (x) = 3x + 15 + 1
(fog) (x) = 3x + 16

-Fungsi komposisi-

f(x) = 3x + 1
g(x) = x + 5

maka,
(fog)(x) = f(g(x)) = 3(x+5) + 1 = 3x+15+1 = 3x+16

semoga membantu
-vin