1. Objectives: Define parallel and perpendicular lines Find Equations of parallel and perpendicular lines

2.  Parallel Lines have the same slope  Perpendicular Lines have the opposite reciprocal slopes or the product of the slopes equals –1  EX: Find the slope of the lines parallel and perpendicular to the given lines.

3.  1. Through and parallel to  2.Through and perpendicular to

4.  3.Through and parallel to x-axis  4.Through and parallel to y-axis

5.  5.Through the y-int. = 4 and perpendicular to  6.Through and perpendicular to