If x1, x2, x3 are in A.P. and y1, y2, y3 are in A.P., prove that points (x1,y1), (x2,y2), and (x3,y3) are collinear. Share with your friends Share 7 Vinny answered this i want solution of this -5 View Full Answer Anunay Sharma answered this A correct method of proving...I hope this will help you 10