What is scale factor for the dilation of segment AB into segment CD?

Question

Draw the dilation of segment AB with scale factor 2/3 and label it segment EF.
The figure is 2 || segments with point A(3, -3) with B(6,3). Other segment is C(4,-4) with D(8,4). Cant seem to get it figured out. Need help.

Answer 1

the length of AB is √45 = 3√5
the length of CD is √80 = 4√5

So, since dilations scale lengths linearly, CD/AB = 4/3

No idea what EF is supposed to be for...