Decide whether relation defines a function and give the domain and range. See Examples 1–4...

Decide whether relation defines a function and give the domain and range. See Examples 1–4.

Example 1

DECIDING WHETHER RELATIONS DEFINE FUNCTIONS

Example 2

FINDING DOMAINS AND RANGES OF RELATIONS

Example 3

FINDING DOMAINS AND RANGES FROM GRAPHS

Example 4

USING THE VERTICAL LINE TEST