Here is an example of how to determine if a relation is a function. Remember to read the lesson on this topic.

Basic steps to follow:

1. If the relation is expressed as a set of ordered pairs look to see if each x value has only one y value- this is a function

2. If the relation is expressed as a graph look to see if the graph passes the vertical line test- if it does its a function

3. Also a relation can be expressed as a mapping- if each x maps to only one y – this is a function

Functions and Relations-basics-1

Important habits to master math:

1. write out all steps

2. be very neat

3. use pencil not pen

4. review your work as your go

5. make sure you know the basics like fractions, positive and negative numbers and order of operations