https://www.google.com/search?source=hp&ei=rQtDXd7QFoPIsQX-k6CoDA&q=cordinate+point+of+line&oq=cordinate+point+of+line&gs_l=psy-ab.3..0i22i30l4.3283.3283..4873...0.0..0.251.421.0j1j1......0....2j1..gws-wiz.....0.frO3KnDkLdY&ved=0ahUKEwie27jHhOLjAhUDZKwKHf4JCMUQ4dUDCAc&uact=5
