Kaya mayroon ka ng equation # y = x ^ 2-4x + 3 # Pagpalitin # y # may # x # at kabaliktaran # x = y ^ 2-4y + 3 # Solusyon para # y # # y ^ 2-4y = x-3 # # (y-2) (y-2) -2 = x-3 # # (y-2) ^ 2-2 = x-3 # # (y-2) ^ 2 = x-1 # # y-2 = + - sqrt (x-1) # # y = 2 + -sqrt (x-1) # Ngayon swap # y # may # f ^ -1 (x) # # f ^ -1 (x) = 2 + -sqrt (x-1) #
