Web page explaining how function composition works, with some worked examples.
S.O.S. Math

An online graphing calculator for students who do not have a handheld one.
algebra.help

A collection of the most common logic problems and their answers.
Online Math Learning

How to solve quadratic equations using the completing the square method.
SOS Math

In this video, Salman Khan of Khan Academy shows you how to find the domain of a function.
Khan Academy

In this video, Salman Khan of Khan Academy explains functions. Part 4 of 4.
Khan Academy

In this video, Salman Khan of Khan Academy explains functions. Part 3 of 4.
Khan Academy

Gives a detailed description of different types of symmetry of a function using equations and graphs. Shows the student also through another link how to determine if a function is odd or even.
The Math Page

Explains how to use the FOIL method of multiplying.
Algebrahelp.com

Review your math as you progress from one marking period to the next.
Edhelper.com
