Question 700808
-3      	x	+	4	y  	=	-8				
Find the slope of this line										                                                                                                            
										
4	y  	=	3      	x		-8    				
Divide by	4									
	y  	=	  3/ 4	x	+	-2    				
Compare this equation with y=mx+b,					m= slope & b= y intercept					
slope m =	 3/4									
										
The slope of a line perpendicular to the above line will be the negative reciprocal										-4/3
Because m1*m2 =-1										
The slope of the required line will be			-4/3							
										
m=	-4/3	,point	(	-12	,	7	)			
Find b by plugging the values of m & the point in										
y=mx+b										
7	=	16      	+	b						
b=	-9    									
m=	-4/3									
The required equation is	y  	=	-4/ 3	x		-9      			
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