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Wednesday, October 9, 2013

SV #2 Unit G Concept 1-7: GRAPHING RATIONAL FUNCTIONZ


This student video is primarily about finding the parts of rational functions in order to graph them. The horizontal asymptote/slant asymptote, vertical asymptote, domain, x-intercept, y-intercept, a table to list any additional points, and a graph are all essential pieces to this type of problem. In the case of slant asymptotes, we will have to recall our knowledge regarding long division.
There are many key points to pay attention to regarding this problem. Pay special attention to the factoring of the rational function, because that precise factoring will result in the answers of the vertical asymptote, domain, x-intercept(s), and y-intercept. This ultimately affects the graph. Also remember to plug in a 0 for a variable in long division. For example, the equation 5x^3+x would need a 0x^2 in the middle in order to properly use long division to factor out the rational function.

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