Khan Academy
Khan Academy: Algebra Ii: Graphing Rational Functions 4
Video shows an example of finding the horizontal and vertical asymptotes of a rational function. Also shows finding the behavior of the function as it approaches the asymptotes and uses this information to sketch a graph of the function....
Khan Academy
Khan Academy: Algebra Ii: Graphing Rational Functions 2
Video shows an example of finding asymptotes of a rational function. Uses the asymptotes and the behavior near the asymptotes to graph the function. Includes an example of a rational function that does not have asymptotes. [8:20]