Question 512853
x1		y1	x2	y2				
-4		-3	2	1				
								
slope m =		(y2-y1)/(x2-x1)						
(	1	-	-3	)/(	2	-	-4	) 
(	4	/	6	)  				
m=		  2/ 3						 
								
Plug value of  the slope  and point (	2	,	1	) in	
Y 	=	m	x 	+	b			
1.00	=	1 1/3	+	b				
b=	1	-	1 1/3					
b=	-  1/ 3							
So the equation  will be								
Y 	=	 2/3	x 		- 1/3			
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