17. Diketahui 𝑓(𝑥) = 𝑥^2 − 𝑥, maka berapakah hasil dari 𝑓(4)+𝑓(2)−𝑓(0)?
a. 10
b. 11
c. 12
d. 13
e. 14
Jawaban :
𝑓(𝑥) = 𝑥^2 − 𝑥
𝑓(4)+𝑓(2)−𝑓(0) ?
hitung masing-masing terlebih dahulu
𝑓(𝑥) = 𝑥^2 − 𝑥
f(4) = 4^2 - 4
f(4) = 16 - 4
f(4) = 12
𝑓(𝑥) = 𝑥^2 − 𝑥
f(2) = 2^2 - 2
f(2) = 4 - 2
f(2) = 2
𝑓(𝑥) = 𝑥^2 − 𝑥
f(0) = 0^2 - 0
f(0) = 0
maka,
𝑓(4)+𝑓(2)−𝑓(0) = 12 + 2 - 0 = 14
Jawaban : E
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