Respuesta :
Answer:
In order for a lines to be perpendicular to one another one of the lines must have the negative reciprocal slope from the other.
Explanation:
If the slopes of two lines are negative reciprocals of one another, then the two lines are perpendicular.
For example, if one line has a slope of 2, then its perpendicular line's slope is -1/2.
If a a line's slope is 1/3, then its perpendicular line's slope is -3/1
