Question 670452
3      	x	+	1	y  	=	1				
Find the slope of this line										                                                                                                            
										
1	y  	=	-3      	x	+	1    				
Divide by	1									
	y  	=	-3      	x	+	1    				
Compare this equation with y=mx+b,					m= slope & b= y intercept					
slope m =	-3    									
										
The slope of a line perpendicular to the above line will be the negative reciprocal										 1/3
Because m1*m2 =-1										
The slope of the required line will be			 1/3							
										
m=	 1/3	,point	(	-2	,	1	)			
Find b by plugging the values of m & the point in										
y=mx+b										
1	=	-  2/ 3	+	b						
b=	5/3									
m=	 1/3									
The required equation is y  	=	  1/ 3	x	+	5/ 3			
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