Question 563585
x1		y1	x2	y2			
5      		4    	7    	8    			
							
slope m =		(y2-y1)/(x2-x1)					
(8-4)/(7-5)  
(	4	/	2    	)  			
m=		2      					
							
Plug value of  the slope  and point (5,4) in
Y 	=	m	x 	+	b		
4.00	=	10    	+	b			
b=	4	-	10    				
b=	-6      						
So the equation  will be							
Y=2x-6    		
m.ananth@hotmail.ca