slope of the 1st ... (0 - 4) / (2 - 0) = -2
slope of 2nd ... (2 - 3) / (-4 - -2) = 1/2
slopes are negative reciprocals
lines are perpendicular
Determine whether the line through
(0, 4) and (2, 0) and the line through
(−2, 3) and (−4, 2) are parallel,
perpendicular, or neither.
neither?
1 answer