The relations (2), (3) and (4) are not functions
How to determine which relation is not a function
From the question, we have the following parameters that can be used in our computation:
The functions represented by
- Table of values
- Graphs
- Mapping
- Ordered pairs
By definition:
A relation is a function if and only if each input value of the relation has only one output value
Using the above as a guide, we have the following:
(2), (3) and (4) are not functions