Rational Functions - Spikes and Spears
This applet is a web based lab that explores the properties of rational functions. The purpose of this lab is to help the student to learn to predict the shape of the graph of a rational function, and in particular to locate its various vertical asymptotes (spikes) and its horizontal or slant asymptotes (spears).
It is one in a series of other precalculus labs by the same author. The directions for using Graph Explorer are contained in the Cartesian Coordinates applet.