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

5687 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Solve for x and y, with x and y satisfying the equations x+4y=5 and 2x+2y=16.


Expand and simplify (x-4)(2x+3y)^2


How do I expand out a pair of brackets?


Solve x^3+20x^2=125x


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:

© 2026 by IXL Learning