You can put this solution on YOUR website! points (1,4) and (4,2) lie on line k. what is the slope of the line that is perpendicular to k?
slope of straight line=∆y/∆x
slope of line k=(2-4)/(4-1)=-2/3
slope of line perpendicular to line k
=negative reciprocal of slope of line k
=3/2
(