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3.1 Pairs of Lines and Angles
3.2 Parallel Lines and Transversals
3.3 Proofs with Parallel Lines
3.4 Proofs with Perpendicular Lines
3.5 Slopes Of Lines
Unit 3 Review

Lesson 3.6 Notes and Practice:

Equations Of Parallel and Perpendicular Lines

This lesson covers how to write and graph parallel and perpendicular lines using a given point and equation of a line. Remember parallel lines have the same slope, but perpendicular lines have negative reciprocals for slopes. Also, the product of slopes for perpendicular lines is -1.