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In this tutorial, we will get practice looking at wackier functions that are defined interval by interval (or piece by piece)!
Functions assign a single unique output for each of their inputs. In this video, Sal gives many examples of various kinds of functions.
Sal explains what a piecewise function is, and finds the formula of a piecewise function given its graph.
Sal graphs a piecewise function given its formula. In this case, the function consists of three separate lines.