Question 887199
x1		y1	x2	y2							
4      		-2      	5      	1    							
											
slope m =		(y2-y1)/(x2-x1)									
(	1    	-	-2    	)/(	5    	-	4    	)			
(	3    	/	1    	)  							
m=		3      						 			
The required line passes through both the points. So we select one point and plug it with the slope 											
Plug value of  the slope  and point			(	8	,	1	) in				
Y	=	m	x	+	b						
1.00	=	3    	*	8	+	b					
1.00	=	24    	+	b							
b=	1    	+	-24    								
b=	-23      										
So the equation  will be											
Y 	=	3    	x		-23    						
m.ananth@hotmail.ca