Q.[20/2]f(x) = 5x + 4 – xNilai f(3) = …​

f(x) = 5x + 4 – x

f(3) = 5(3) + 4 – 3

f(3) = 15 + 1

f(3) = 16

Jawaban:

f(3) = 16

Langkah–langkah:

f(x) = 5x + 4 – x

f(3) = 5(3) + 4 – 3

f(3) = 15 + 4 – 3

f(3) = 19 – 3

f(3) = 16