# Use a mapping diagram to determine whether the relation is a function. {(4,5), (1,8), (1,9), (9,6), (2,13), (4,1)} Which of the following mapping diagrams represents the relation?

##### 1 Answer

Jun 16, 2018

Diagram C.

Not a function

#### Explanation:

Diagram C. is the correct mapping for this relation.

It is, however, not a function.

A relation can be called a function if each element of the domain is related to exactly one element in the range.

We see from the diagram that both

Therefore, this relation is not a function.