Domain and Range of a Piecewise Function Graph

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Taught by mrbrianmclogan
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Meets NCTM Standards:
Lesson Summary:

In this lesson, students learn how to find the domain and range of a piecewise function graph. The domain is the set of all x values that are defined for the function, while the range is the set of all y values that make the function true. The teacher walks through an example and demonstrates how to identify the x and y values on the graph, and then how to write them out as the domain and range respectively. Students are encouraged to think about whether a given point is defined on the graph and then to use that information to determine the domain and range.

Lesson Description:

Finding the domain and range of a piecewise function graph

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Questions answered by this video:
  • Given f(x)=x+1, -3≤ x <0 x², 0≤ x ≤2 Find its Domain and Range.