Question

Diketahui f fungsi linier dengan f(0)=-5 dan f(-2)=-9.rumus fungsi f(x)adalah..

Answer 1

Verified answer

Materi Fungsi

Misal f(x) = ax + b, sehingga
f(0) = 0 + b = b = -5
f(-2) = -2a + b = -9
Substitusikan b = -5, sehingga
-2a - 5 = -9
-2a = -9 + 5
-2a = -4
a = 2

Jadi, f(x) = 2x - 5