** Definition of Relation**

- A set of input and output values, usually represented in ordered pairs, refers to a Relation.

**More about Relation**

- Relation is generally represented by a mapping diagram and graph.

**Example of Relation**

- The mapping diagram of the relation {(1, 2), (3, 6), (5, 10)} is shown below.

**Solved Example on Relation**

Choose a graph that represents the relation {(3, - 4), (5, - 4), (- 6, - 4), (2, 3)}.

Choices:

A. Graph 3

B. Graph 1

C. Graph 4

D. Graph 2

Correct Answer: D

Solution:

Step 1:Graph each ordered pair on a coordinate plane.

Step 2:The graph that represents the relation {(3, - 4), (5, - 4), (- 6, - 4), (2, 3)} is Graph 2.

**Related Terms for Relation**

- Number
- Ordered Pair
- Rule
- Set