In this video, Salman Khan of Khan Academy explains systems of equations.
Khan Academy
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This video includes sample problems and step-by-step explanations of graphing inequalities and testing assertions for the California Standards Test.
Khan Academy
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In this Early Edge video lesson, you'll learn more about Graphing Inequalities, so you can be successful when you take on high-school Math & Algebra.
The Princeton Review
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In this Early Edge video lesson, you'll learn more about Working with Inequalities, so you can be successful when you take on high-school Math & Algebra.
The Princeton Review
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In this Early Edge video lesson, you'll learn more about Introduction to Algebra, so you can be successful when you take on high-school Math & Algebra.
The Princeton Review
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This video includes sample problems and step-by-step explanations of systems of equations and inequalities for the California Standards Test.
Khan Academy
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Excellent site showing examples of algebra, trig, calculus, differential equations, and linear algebra.
Paul's Online Math Notes
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Need help solving systems of linear equations? In this video, a Tutor.com algebra tutor uses the substitution method to solve a system of linear equations, and shows you how to use graphing to make sure you don’t get tricked by systems of parallel lines that have no solution. You’ll graph the linear equations, find their point of intersection, solve them using substitution, and check your work to make sure it all makes sense.
Tutor.com
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This site provides graphing tools. The GCalc 3 menu has several options for graphing. One nice aspect of this site is that multiple functions can be graphed in different colors on the same screen. Another useful feature is that it is easy to copy and paste or print the graphs that are generated.
GCalc - Java Online Graphing Calculator
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