Parallel, Perpendicular, or Neither
View the Lesson | MATHguide homepage Updated March 24th, 2018

Status: Waiting for your answers.


Given:Points A(12, -10), B(20, -6), C(7, 9), D(11, 12)
  
Slope Formula
  
Problem:Calculate the slopes of line AB and line CD to determine if they are parallel, perpendicular, or neither.
mAB =  
mCD =  
 
Characteristic: