Question 478429
8	x		-10	y	=	-80	.............1		
-2	x		-9	y	=	18	.............2		
									
multiply (1)by 		-9							
Multiply (2) by		10							
-72	x	+	90	y	=	720			
-20	x		-90	y	=	180			
Add the two equations									
-92	x				=	900			
/	-92								
x	=	-9.78		==>	-88/9				
plug value of 			x	in (1)					
8	x	+	-10	y	=	-80			
-78.26		+	-10	y	=	-80			
			-10	y	=	-80	+	78.26	
			-10	y	=	-1.74
	y=1.74
Determine the intercep[t points of both the lines		
equation1			
when x=	0	y=	8	(	0	,	8	)
when y =	0	x=	-10	(	-10	,	0	)
Equation 2								
when x=	0	y=	-2	(	0	,	-2	)
when y =	0	x=	-9	(	-9	,	0	)
				y	=	0.17		==>	 1/6
{{{drawing(300,300,-15,5,-10,10,circle(0,8,0.3),circle(-10,0,0.3),circle(0,-2,0.3),circle(-9,0,0.3),graph(300,300,-15,5,-10,10,y=(4/5)x+8,y=(-2/9)x-2))}}}



m.ananth@hotmail.ca