What's the inverse of the function f=x+2?

If we apply a function and then its inverse, we should get back to where we started. 

Suppose we start with an element x. If we apply f to it, we get to x+2. In order to get back to where we started (i.e. x), we need to subtract 2.

Hence, the inverse of the function f is

f-1=x-2.

MG
Answered by Marco G. Maths tutor

4128 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

What term comes next in the sequence: 5, 8, 11, 14


What does differentiation mean and represent? (A-Level students)


How do surds relate to powers and roots?


How do you factorise and know if it is a difference of two squares ?


We're here to help

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

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences