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Diketahui f(x)=3x−6 dan g(x)=x+4 Tentukan gof

Diketahui f(x)=3x−6 dan g(x)=x+4 Tentukan gof

Jawaban yang benar adalah (g o f)(x) = 3x – 2.

Asumsikan soal : Diketahui f(x)=3x−6 dan g(x)=x+4 Tentukan (gof)(x).

Sifat :
(g o f)(x) = g(f(x))

f(x) = 3x – 6
g(x) = x + 4

(g o f)(x) = g(f(x))
= g(3x – 6) —> substitusi x pada g(x) dengan 3x – 6
= (3x – 6) + 4
= 3x – 2

Jadi, (g o f)(x) = 3x – 2.

Baca Juga :  5. From where does the son know about the complete information? a. From his teacher. b. From his mother. c. From the article. d. From the seller's explanation.