This is a Powerpoint lesson that I use to teach Section 6.6 of the Prentice Hall Algebra 1 textbook. It can also be used as a review in Algebra 2 classes. The presentation can be edited to make it perfect for your specific classes.
It includes a video that explains the topic which makes it perfect for new teachers, home teachers, or on days that you can't be in the classroom. (I use that time to take roll.)
For fun ways to review important topics, try these:
Fun PowerPoint Review Games
Tic Tac Toes
Common Core Standards
Represent and solve equations and inequalities graphically.
A-REI 12. Graph the solutions to a linear inequality in two variables as a half-plane (excluding the boundary in the case of a strict inequality), and graph the solution set to a system of linear inequalities in two variables as the intersection of the corresponding half-planes.