Instructional Video
Khan Academy

Khan Academy: Algebra Ii: Graphing Rational Functions 4

9th - 10th Standards
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....
Instructional Video
Khan Academy

Khan Academy: Algebra Ii: Graphing Rational Functions 2

9th - 10th Standards
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]
Instructional Video
Khan Academy

Khan Academy: Algebra: Asymptotes of Rational Functions

9th - 10th Standards
Video explains what asymptotes are and demonstrates how to determine the asymptotes of rational functions. Includes rules for horizontal asymptotes based on the highest power of the numerator and denominator of the rational function....