Question 514049
x1		y1	x2	y2				
-4		-8	8	4				
								
slope m =		(y2-y1)/(x2-x1)						
(	4	-	-8	)/(	8	-	-4	) 
(	12	/	12	)  				
m=		1      						 
								
Plug value of  the slope  and point 	(	-4	,	-8	) in	
Y 	=	m	x 	+	b			
-8.00	=	-4    	+	b				
b=	-8	-	-4    					
b=	-4      							
So the equation  will be								
Y 	=	x 		-4