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

Answered by Katy M. Maths tutor

4592 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Solve 5x + 4 = 14 + x


Solve the following pair of simultaneous equations: 1. 3x + 2y = 9 2. 6x + 5y = 21


How do I find the equation of a line that is perpendicular to another line?


A linear equation has terms: a+2b, a + 6b, a + 10b, ......., ........ the second term equals 8 and the fifth term equals 44. Work out the value of a & b


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo
Cookie Preferences