Bantuin dong, lusa kumpul….​

bentuk umum fungsi linier

f(x) = ax + b

f(1) = a + b = 3

f(3) = 3a + b = 11

—————— –

-2a = -8

a = 4

a + b = 3

4 + b = 3

b = -1

sehingga

f(x) = 4x – 1 (D)

Jawaban:

jawaban = D

karena , f(1) = 4 (1) – 1 = 3