You’ll explore techniques in this module that will help you set up and interpret situations involving systems of two or three linear equations and systems involving non-linear inequalities. You’ve already learned about identifying and graphing linear equations, but a good understanding of linear inequalities and systems of linear inequalities will be necessary before beginning your study of non-linear inequalities.

Warm up for this module by refreshing important concepts and skills you’ll need for success. As you study these review topics, recall that you can also return to Algebra Essentials any time you need to refresh the basics.