Find the inverse function of f(x)=5/(x-4)

f(x) = 5/(x-4)To find the inverse, replace f(x) with y: y=5/(x-4)Now the aim is to make x the subject of the equation:Multiply both sides by x-4:y(x-4)=5Divide by y:x-4=5/yAnd finally add 4:x=5/y + 4

KM
Answered by Katy M. Maths tutor

5462 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

A ladder 5m long is leaning up against a wall. The foot of the ladder is 3m from the wall. How high up the wall does the ladder reach?


x^2 +y^2 =25, y – 3x = 13 - Simultaneous Equations (June 2017)


Karen got 32 out of 80 on a Maths test. She got 38% on an English test. Which test did she do better in?


How do you solve an algebraic equation?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning