is the line through points P(-8,10)and Q(-5,-12) perpendicular to the line through points R(9,-6) and S(17,-5)? Explain

2 answers

find the slopes of the lines

perpendicular lines have slopes that are negative reciprocals of each other

slope PQ ... (-12 - 10) / (-5 - -8) = -22 / 3

slope RS ... (-5 - -6) / (17 - 9) = 1 / 8
SO IS IT PERPENDICULAR OR NOT