Find the slope of a line perpendicular to each given line
Hi Young Friend,
I show you another way for finding slop. If you have Ax+By+C=o that it is one of standard form for line.
It is enough, you find -A/B because it is slop.
3x+4y=8 3x +4y-8=0 slop = -3/4 as you know A=3 , B=4 . Now if you need slop for perpendicular line is
+4/3 and slop for parallel line is -3/4. In fact when two lines are parallel they have the same slop. I hope this explain is useful for you. Please feel free if you have any question.