pada suatu fungsi linier f (x) = ax+b dengan f (1) =0 dan f(0) =-2 rumus fungsi f(x)=

f(x) = ax + b

f(1) = 0
a(1) + b = 0
a + b = 0...............(1)

f(0) = -2
a(0) + b = -2
b = -2.....................(2)

(2) disubtitusikan ke (1)
a + b = 0
a + (-2) = 0
a - 2 = 0
a = 2

a = 2 & b = -2
f (x) = ax + b
= 2x + (-2)
= 2x - 2

Moga membantu....