Question 1159378
m=		-  1/2 				
						
Plug value of  the slope  and point			(	2	,	1
Y	=	m	x	+	b	
1.00	=	-1    	+	b		
b=	1.00	-	-1    			
b=	2      					
So the equation  will be						
Y 	=	- 1/2	x		2