Question 549892
y=100+15x

y= 350+30x

{{{drawing(500,500,-40,40,-10,400,circle(0,100,0.3),circle(-6.66,0,0.3),circle(0,350,0.3),circle(-7,0,0.3),graph(300,300,-40,40,-10,400,y=15x+100,y=30x+350))}}}