Domain and range of a function. Chris Tisdell UNSW Sydney

This video discusses the domain and range of a function via a simple example. Such ideas are seen in high-school and first-year university mathematics.

The domain and range of a function gives us: a set of "allowable" inputs; and a set of achieved outputs, respectively. It is important information that is designed to ensure that work associated with the function is well--defined and can be used to learn more about how the function behaves, eg, for graphing purposes.