22. Diketahui 𝑓(𝑥) = 2𝑥 + 1 dan 𝑔(𝑥) = 2 − 4𝑥, tentukanlah nilai dari (𝑔 / 𝑓)(3)!
a. 1 3/7
b. 3/7
c. −3/7
d. −1 3/7
e. 1 7/3
Jawaban :
𝑓(𝑥) = 2𝑥 + 1
𝑔(𝑥) = 2 − 4𝑥
(𝑔 / 𝑓)(3) = g(3) / f(3)
kita hitung g(3) dan f(3) terlebih dahulu ya ~
𝑔(𝑥) = 2 − 4𝑥
g(3) = 2 - 4 (3)
g(3) = 2 - 12
g(3) = - 10
𝑓(𝑥) = 2𝑥 + 1
f(3) = 2(3) + 1
f(3) = 6 + 1
f(3) = 7
(𝑔 / 𝑓)(3) = g(3) / f(3)
(𝑔 / 𝑓)(3) = - 10 / 7
(𝑔 / 𝑓)(3) = - 1 3/7
Jawaban : D
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