Question

Tentukan invers dari fungsi 3 - 2x !

Answer 1

F(x) = 3 - 2x
y     = 3 - 2x
y-3  = -2x
-2x  = y - 3
  2x = -(y-3)
    x = -(y-3)/2
    x = (-y+3)/2
    x = (3-y)/2
f⁻¹(x)= (3-x)/2