x1 10.0 15.7 21.4 27.1 32.9 38.6 44.3 50.0 x2 0 28.6 57.1 85.7 114.3 142.9 171.4 200.0 y2 A B C D E F y1 0 7.14 14.3 21.4 28.6 35.7 42.9 50.0