### Home > GB8I > Chapter 4 Unit 5 > Lesson INT1: 4.2.3 > Problem 4-89

4-89.

For each graph below, what are the domain and range?

See the Math Notes box in Lesson .

Domain:

Range:

Domain:

Range: All Numbers

Which, if any, of the graphs represents a function?

In order for a graph to represent a function, each

-value can only relate to one-value.