Question 424943
x1		y1	x2	y2			
1		3	-3	8			
							
slope m =(y2-y1)/(x2-x1)					
m=-1.25					
							
Plug value of  the slope  and point (1,3) in
Y =mx+b		
3.00=-1.25+b			
b=	3		+1.25				
b=	4.25						
So the equation  will be							
Y =-1.25x +4.25