LT 4.1: PARALLEL & PERPENDICULAR LINES: I can solve problems involving parallel and perpendicular lines in a coordinate graph.

 

LT 4.2: WRITING & SOLVING LINEAR SYSTEMS: I can model a context using a system of linear equations. I can solve a system of equations by using a graph, substitution, and elimination, and determine if the system has 0, 1, or infinite solutions.

 

http://edu.glogster.com/glog/solving-system-of-linear-equations/1wpt2ttf0pm