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This site explains what vertical asymptotes, horizontal asymptotes, and holes are.

Basic way of finding horizontal asymptotes explains how to do it step-by-step

This site explains step-by-step how to graph rational functions and how to find the asymptotes and x and y intercepts.

This site gives you all the steps to graph a rational function and even gives you practice problems.

This is a great website for learning about the graphs of rational functions. Shows you everything from the horizontal and vertical asymptote to the intercepts. It sketches it all out for you which makes it ten times easier.

Explore interactively, using an applet, rational functions and the properties of their graphs such as domain, vertical and horizontal asymptotes, x and y intercepts.

Explore interactively, using an applet, rational functions and the properties of their graphs such as domain, vertical and horizontal asymptotes, x and y intercepts.

This website explains how to graph rational functions. It deeply explains how to find different asymptotes and intercepts. The different asymptotes that is explains how to do is vertical and horizontal asymptotes. There are also many problems that are worked out on this website.

How to graph all kinds of rational functions.

A website where Exponential functions are explored, interactively, using an applet. The properties such as domain, range, horizontal asymptotes, x and y intercepts are also investigated. The conditions under which an exponential function increases or decreases are also investigated.

This website tells you about exponential functions, and also has a interactive program that allows you to see a graph and change the points on the coordinate plane which changes the graph. This is very helpful in knowing how the graph works.