Question

Pada fungsi linear f(x) = ax + b, diketahui f(1) = 0 dan f(0) = -2. tentukan rumus fungsinya........

Kl ad caranya pake caranya jg y kak...............
makasih yg udah jwb.

Answer 1

F(1) = a(1) + b --> a+b = 0
f(0) = a(0) + b --> b = -2

Eliminasi sederhana agar mendapat nilai a
a+b=0
    b=-2
--------------+
a    =2
b = -2

Rumus fungsi : f(x) = 2x+(-2) atau f(x) = 2x-2

Answer 2

F(x) = ax + b
f(1) = 0 ⇒ 0 = a + b
f(0) = - 2 ⇒ - 2 = b
masukin a + b = 0
a - 2 = 0
a = 2
f(x) = ax + b
= 2x - 2