Kisi Kisi PAT Matematika Kelas XI no 61

61. Jika 𝑓(𝑥) = 4𝑥 dan 𝑓(𝑔(𝑥)) = −1/2𝑥 + 1, maka 𝑔(𝑥) = ⋯

a. 1/4 (𝑥 − 1)

b. 1/4 (−𝑥 + 2)

c. 1/8 (−𝑥 − 2)

d. 1/8 (−𝑥 + 2)

e. 1/8 (𝑥 − 2)

Jawaban :

𝑓(𝑥) = 4𝑥

𝑓(𝑔(𝑥)) = −1/2𝑥 + 1

4(g(x)) = - 1/2x + 1

g(x) = -(1/2)/4 x + 1/4

g(x) = - 1/8 x + 1/4

g(x) = 1/8 (- x + 2)

Jawaban : D