This Purplemath lesson provides formulas, equations, graphs and explanations of systems of equations.

A complete high school Precalculus Concepts course. Includes 'Related Modalities' for each lesson that teach the same concept in different ways. The text materials follows Algebra II and comes before Calculus or Statistics. The content...

This site has several lessons on regression, "Designed to help students visualize topics associated with lines of regression, given a set of data points." Go to the teacher notes to find the objectives and standards which apply.

In this video segment from Cyberchase, the CyberSquad tries to reach Ms. Fileshare by using a 3 x 3 matrix to figure out the various ways they can travel to her.

This Purplemath lesson describes how to solve a system of linear inequalities by graphing.

This lesson explains how the determinant is used for Cramer's Rule.

This lesson explains how the determinant is used for Cramer's Rule.

This lesson explains how the determinant is used for Cramer's Rule.

Provides several graphical representations of multivariate data. This paper explains the graphs such as the scatter plot and several other graphs as well. Site is presented in notes and outline format.

This site, which is provided for by the University of St Andrews, gives a biography of James Sylvester, mathematician. Links to other interesting sites are provided as well.