Homework Hints for Section 2.4.

Problems 1-5
Problem 6
Problems 7-8
Problem 9
Problems 10-13
Problems 14-36
Problems 37-43
Problems 44-48

Note: Homework Hints are given only for the levels 1 and 2 problems.

There are many sources for homework help on the internet.

Algebra.help
where technology meets mathematics. You can seach a particular topic or choose lessions, calculators, worksheets for extra practice or other resources.

http://www.algebrahelp.com/

Ask Dr. Math

is a registered trademark. This is an excellent site at which you can serch to see if your question has been previously asked, or you can send your question directly to Dr. Math to receive an answer.
http://legacy.mathforum.org/dr.math/

Quick Math
provides online graphing calculators. This is especially useful if you do not have your own calculator.
http://www.quickmath.com/

The Math Formum @ Drexel
This site provides an internet mathematics library that can help if you need extra help. For additional homework help at this site, click on the MATHLINKS button at the left (below the chapter buttons).
http://legacy.mathforum.org/dr.math/

Mathematics Home Page
Access the Clemens and Alcuins Library of CSB/SJU and find one of the world's best collections of mathematical internet sites.
http://www.csbsju.edu/library/internet/mathhome.html