Kisi Kisi PAT Matematika Kelas XI no 24

24. Jika 𝑓(𝑥) = 3𝑥 + 2 dan 𝑔(𝑥) = 2 − 𝑥, maka (𝑔 𝑜 𝑓)(𝑥)= ...

a. −3𝑥

b. 3𝑥

c. − 3𝑥 − 4

d. −3𝑥 + 2

e. 3x - 2

Jawaban :

 𝑓(𝑥) = 3𝑥 + 2

𝑔(𝑥) = 2 − 𝑥

(𝑔 𝑜 𝑓)(𝑥) = g (f (x))

(𝑔 𝑜 𝑓)(𝑥) = g (3x + 2)

(𝑔 𝑜 𝑓)(𝑥) = 2 - (3x + 2)

(𝑔 𝑜 𝑓)(𝑥) = 2 - 3x - 2

(𝑔 𝑜 𝑓)(𝑥) = - 3x

Jawaban : A