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Mathematics 20 Online
OpenStudy (anonymous):

why rational functions take the shapes they do

OpenStudy (anonymous):

they have asymptotes because we cannot divide by zero and they are concave up on one side and concave down on the other side of the asymptote since on one side of the 0 we have positives (concave up) and on the other side of zero we have negatives (concave down)

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