Interpreting and Graphing Piecewise Functions

Learn how to graph a function that is in pieces. The Mathispower4u Algebra I Video interprets the graph of a piecewise function that represents a cellphone plan. Pupils use the graph to determine the cost for a given number of units along with finding the number of minutes for a given cost. The video continues to show scholars how to graph a piecewise defined function by graphing each portion separately and combining them onto one graph.

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CCSS: Adaptable
Additional Tags
Instructional Ideas
  • Review the graph notation of intervals
Classroom Considerations
  • Requires individuals to understand the definition of piecewise functions
  • Assumes the class knows how to read information from a graph
  • Uses colors to show the graphs of pieces of the functions
  • Shows how to graph a piecewise function by using a graphing calculator
  • None