human
Solve coordinate geometry questions involving ratio Given that \( A C=3 A B \), what are the coordinates of \( C \) ? ![A straight line labelled y=2x-1 is drawn on a set of axes. Points A, B and C are all on the line. Point A is (2,3) and B is (5,9).]() \( (21,36) \)
gpt
Does not know how to find the length of a line segment from coordinates