Equations of parallel and perpendicular lines.[br]When lines are parallel, it will say "Parallel" on the screen.[br]When lines are perpendicular, it will say "Perpendicular" on the screen.

1. Adjust the slopes of the lines ([i]m[/i]) so that the lines are parallel. How are their slopes related?[br][br]2. Adjust the slopes of the lines ([i]m[/i]) so that the lines are perpendicular. How are their slopes related?