Question

Tentukan rumus fungsi f(x) jika diketahui f'(x)=8x+5 dan f(2)=28

Answer 1

F'(x) = 8x+5 Integral
f(x) = 4x² + 5x + C
f(2) = 4.(2)² + 5.2 + C
= 16 + 10 + C = 28
= 26 + C = 28
= C = 2

f(x) = 4x² + 5x +2

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