Connect the maximum number of points by a straight line.
The points that lie on the straight line are equivalent points.
The given graph is
Point (4, 7) doesn't lie on the straight line when the other three points lie on the line.
Hence (4, 7) is not equivalent to (2, 3), (6, 9), and (8, 12)
The ratio of 4 to 7 is not equivalent to others.
