Piecewise Functions

Summary

piecewise functions are functions where a different formula or rule applies for different parts of the domain.

a special type of piecewise function is called a step function. the graph of this function is a series of horizontal lines for different parts of the domain.

Key Skills

  • sketch the graph of a piecewise function
  • solve word problems and applications involving piecewise and step functions

Vocabulary

piecewise function, domain, step function.