Determine the Slopes of Parallel and Perpendicular Lines Parallel lines have matching slopes. If
m_(1)
and
m_(2)
represent the slopes of two nonvertical parallel lines, then
m_(1)=m_(2)
. Perpendicular lines have slopes that are negative reciprocals. If
m_(1)
and
m_(2)
represent the slopes of two nonvertical perpendicular lines, then
m_(1)=-(1)/(m_(2))
. The slope of a line is given. Determine the slope of a line parallel and perpendicular to the given line, if possible. 5.
m=-(3)/(8)
m=20
m=0
Parallel: Parallel: Parallel: Perpendicular: Perpendicular: Perpendicular: