Inverse Functions

Inverse Functions (Question)

For each of the function below, obtain its inverse function.

  1. f(x) = x + 1
  2. f(x) = 2/x
  3. f(x) = 3/(x-1)


  • Function f is said to be the inverse of function g if the inverse of function f is equal to function g and vice versa.
  • In order to obtain the inverse function, first one need to set the function x as y then make y become the subject of the formula.
  • For verification purpose, one can check if ff-1(x) or f-1f(x) will return to x.

Inverse Functions (Answer)

  1. f-1(x) = x-1
  2. f-1(x) = 2/x
  3. f-1(x) = (3/x) + 1

About Dr Loo - O-level & JC H2 math tutor

I am Dr Loo, a PhD holder with 8 years of teaching experience on secondary school and tertiary level specialize on mathematics and statistics. In addition, I also received teaching training under tertiary setting. Furthermore, I have published 5 research papers on international peer reviewed journals. If you are currently looking for secondary mathematics tuition or A-level math tuition in Singapore,​ I do provide O-level Math Tutoring & JC Math Tutoring (H1 Math Tuition Class & H2 Math Tuition Class).

Thus, for those who are looking for a JC Math Tutor (H1 Math tutor or H2 Math tutor) as well as O-level Math Tutor (E-math tutor or A-math tutor), you may contact me for my math tuition in Singapore. I can be contacted through SMS/Whatsapp/Telegram at +65-85483705.

JC H1 H2 Math Tutor Singapore, O-level Math Tutor Singapore
O-level Math & JC Math Tuition Singapore - Inverse Functions
Whatsapp Dr Loo (+65-85483705)