Take two linear pieces and make a complete graph. A helpful video shows how to graph a linear piecewise function. Pupils review graphing linear functions and then see how to restrict their domains based on the defining domains for the piecewise function.

Concepts

graphing, graphing functions, piecewise functions

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Additional Tags

math

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Instructional Ideas

• Use a graphing utility to graph several piecewise functions and create a matching activity for the class to complete

Classroom Considerations

• One of three examples of graphing piecewise functions from Mathispower4u
• Assumes students know how to graph linear equations in slope-intercept form

• This video is hosted on YouTube

Pros

• Uses colors to highlight the portions of the function to the respective parts of the graph
• Writes out the slope and y-intercept from the equation and then graphs the lines from there

Cons

• None

Common Core

SL.9-10.2 SL.11-12.2 MP6 MP7 HSF-IF.C.7.b