MATH1050: Inverse Functions
Instructor: Laura Strube
Name:
Student ID:
Answer the questions in the spaces provided or copy the questions neatly on
your own paper
The following equations are invertible. Find the equations for their inverse functions and
then check your work by calculating f ◦ f −1 and f −1 ◦ f 1 for each function.
1. (5 points) f (x) = 6x + 3
1
2. (5 points) f (x) =
x
5+x
3. (5 points) f (x) =
5
2x