Question 479922
x1		y1	x2	y2				
1		-5	-3	7				
								
slope m =		(y2-y1)/(x2-x1)						
(	7	-	-5	)/(	-3	-	1	) 
(	12	/	-4	)  				
m=		- 3						 
								
Plug value of  the slope  and point 			(	-1	,	8	) in	
Y 	=	m	x 	+	b			
8.00	=	 -3	+	b				
b=	11					
So the equation  will be								
Y 	=	-3	x 	+	11			
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