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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 ...
Horizontal lines run left to right, parallel to the horizon, with slope 0 and equation y = k. Vertical lines run top to bottom, perpendicular to the horizon, with undefined slope and equation x = k.
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