Question

What is the inverse of g(x)=2x−5?

Answer 1

`g^-1(x)=1/2(x+5)`

Explanation:

`g(x)=y=2x-5`

`"rearrange making x the subject"`

`2x=y+5`

`rArrx=1/2(y+5)`

`rArrg^-1(x)=1/2(x+5)larr" express in terms of x"`