Piecewise functions just seem to be difficult for Algebra 1 AND Algebra 2 students so I have made and use this PowerPoint lesson Every Year. It includes step by step instructions and is completely animated so that a substitute could use it in an Algebra 2 class as a refresher when you're out. The worksheet has 2 piecewise functions and asks for three values, the domain and the range (because they always forget this) and the graph of the function. Step functions and word problems are also solved step by step within this lesson. The key is included and the graphs are hand drawn NOT computerized.
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