Question 92938
perpendicular means that the slopes are negative reciprocals of each other


the original line has a slope of 3/4, so the perpendicular line has a slope of -4/3


3x-4y=0 ... -4y=-3x+0 ... y=(3/4)x+0 (y=mx+b)


can't tell where the 12 comes from ... judging from the question, the 12 could be any number - it is the slope that's important