STEP - BY - STEP EXPLANATION
The types of function given.
Given:
Step 1
Represent the given function using a diagram.
Step 2
Determine the type of function using the diagram in step 1.
Clearly, the function is one - to -one function since each every element in the domain is mapped to a unique element in the co - domain.
Also, the function is also an onto function since for all images of the function in the co-domain, there is its pre-image in the domain.
A function that is one-to-one and onto is known as a bijective function.
ANSWER
Bijective function.
