How to find the domain and range of a piecewise function graph

The video tutorial explains the concepts of domain and range in mathematical functions. It describes how the domain consists of all possible X values for which a function is defined, and how the range includes all possible Y values that a function can output. The tutorial uses a graph to illustrate these concepts, showing how to determine if a point is part of the domain or range by checking if it corresponds to a point on the graph.

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