Unit 4, Lesson 26# Characterization of Parallel Lines

EngageNY 45 min(s)

Students know that when a system of linear equations has no solution (i.e., no point of intersection of the lines), then the lines are parallel. The Discussion is an optional proof of the theorem about parallel lines. For each exercise, the graphs of the given linear equations look like parallel lines. Each time, the linear equations of the system had the same slope.