Question 672166
x1		y1	x2	y2								
-2		9	-7	-7								
												
slope m =		(y2-y1)/(x2-x1)										
(	-7	-	9	)/(	-7	-	-2	)				
(	-16	/	-5	)  								
m=		16/5						 				
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 (-2	,9	) in					
Y	=	m	x	+	b							
9.00	=	16/5	*	-2	+	b						
9.00	=	-32/5	+	b								
b=	9    	+	32/5									
b=	77/ 5											
So the equation  will be												
Y 	=	16/5	x	+	77/5	

multiply equation by 5
5y=16x+77

16x-5y=-77

						
m.ananth@hotmail.ca