under a dilation of the point M(15,6) is M'(5,2). Choose the general rule that describes the dilation mapping point M to point M'

Question

A: (x,y)->(1/3x,1/3y)

B: (x,y)->(1/3x,3y)

C:(x,y)->(3x,1/3y)

D:(x,y)->(3x,3y)

Answer 1

A: (x,y)->(1/3x,1/3y)

Answer 2

A is correct. It would have been nicer to have seen this written as 1/3(x, y) as this is more in the spirit of a dilation.