Invers fungsi f(x) = f-1(x) = 4x+8. Rumus fungsi f(x) =

4x + 8 = y
4x = y - 8
x = (y-8)/4

(f-1(x))-1 = (x-8)/4

f(x) = (x-8)/4
f(x) = 1/4 x - 2

smga mmbantu