Question 482458
equation1						
when x=	0,	y=	2	(	0	,	2	)	2    
when y =	0,	x=	4	(	4	,	0	)    
Equation 2									
when x=	0,	y=	1	(	0	,	1	)	1    
when y =	0,	x=	1	(	1	,	0	)

{{{drawing(300,300,-10,10,-10,10,circle(0,2,0.3),circle(4,0,0.3),circle(0,1,0.3),circle(1,0,0.3),circle(-2,3,0.2),graph(300,300,-10,10,-10,10,y=-x/2+2,y=-x+1))}}}
	


	x	+	2	y	=	4	.............1	
	x	+		y	=	1	.............2	
Eliminate y								
multiply (1)by 		1						
Multiply (2) by		-2						
1	x	+	2	y	=	4		
-2	x	+	-2	y	=	-2		
Add the two equations								
-1	x				=	2		
/	-1							
x	=	-2    			
plug value of 			x	in (1)				
1	x	+	2	y	=	4		
-2		+	2	y	=	4		
			2	y	=	4	+	2
			2	y	=	6		
				y	=	3
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