Lesson+Plan+3

This is a new unit, but flows nicely from their unit on linear relationships. I knew that students had already been introduced to writing equations of lines in slope-intercept form and that they had already been able to find the point of intersection by looking at a graph and that they knew how to solve for a variable. So I introduced to them a new method for finding the point of intersection (finding it algebraically).
 * PPA Lesson 2- Graphs of Linear Systems**