Determine the equation to use in evaluating a piecewise function. Learners watch a video on evaluating a piecewise function. They confirm the equation to use based on the domain and then use substitution to find the value of the function at that point.

Concepts

piecewise functions, function notation, evaluating expressions, domain

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Additional Tags

math

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Instructional Ideas

• Provide a different function and have class members evaluate the function from the graph

Classroom Considerations

• Requires pupils to understand function notation
• Part of the larger Algebra 1 Mathispower4u video series

• This video is hosted on YouTube

Pros

• Verifies the output values using a graph of the piecewise function
• Uses colors to highlight the piece of the function involved based on the input value

Cons

• None

Common Core

SL.9-10.2 SL.11-12.2 MP6 MP7 HSF-IF.A.2