## Domain and Range of Rational Functions

Domain and range are essential for rational functions since some inputs make them undefined. It is crucial to understand how to define the domain and range of rational functions because it allows you to determine asymptotes and the long-run behavior of rational functions.

### Ex: The Domain of Rational Functions

Source: Mathispower4u, https://www.youtube.com/watch?v=v0IhvIzCc_I

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