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Is your piecewise function actually a function? #mathtutor #mathhelp

In this video, we provide essential "math help" by explaining how to "graph" functions, beginning with a basic cosine wave ...
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Graphing the sine function with a vertical shift

Learn how to graph a sine function. To graph a sine function, we first determine the amplitude (the maximum point on the graph), the period (the distance/time for a complete oscillation), the phase ...