Question

if two lines are perpendicular then the product of there slope it____​

Answer 1

Answer:

hi answer for the question

Answer 2

Answer:

if you multiply the slopes of two perpendicular lines in the plane you get -1. that is the slopes of perpendicular lines are opposite reciprocals

Step-by-step explanation:

horizontal and vertical lines are perpendicular , though you can't multiply their slopes , since the slopes of a vertical line is undefined