Question 1155051


12	x		-9	y  	=	135
				
Find the slope of this line										
										
9	y  	=	-12	x	+	135				
Divide by	9									
	y  	=	-4/3	x	+	15				
Compare this equation with y=mx+b										
slope m =	-4/3									
										
The slope of a line perpendicular to the above line will be the negative reciprocal										=3/4