Question 509667
y=-2x-1

when x=	0	y=	-1	(	0	,	-1	)	    
when y =	0	x=	-0.5	(	-0.5	,	0	)	

{{{drawing(300,300,-10,10,-10,10,circle(0,-1,0.3),circle(-0.5,0,0.3),graph(300,300,-10,10,-10,10,y=-2x-1))}}}