Learn how to evaluate a piecewise function by looking at the graph

The video tutorial explains how to evaluate functions, particularly focusing on piecewise functions. It begins with a basic function evaluation and then introduces the concept of piecewise functions, emphasizing the importance of understanding domains. The tutorial uses a graph to illustrate how to choose the correct function based on the input's domain. It concludes by highlighting common mistakes students make, such as incorrectly evaluating inputs in both functions of a piecewise function.

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