Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Systems of Linear Inequalities
Find a quick, concise explanation of system of linear inequalities. An example is given and clearly explained.
Purple Math
Purplemath: Systems of Linear Inequalities
This Purplemath lesson describes how to solve a system of linear inequalities by graphing.
University of Regina (Canada)
University of Regina: Math Central: Graphing Inequalities of Conic Sections
A solution to a student submitted problem is given. The problem involves systems of conic sections with inequalities.