Question

In the image, two circles are centered at A. The circle containing B was dilated to produce the circle containing B′. What is the scale factor of the dilation?https://cdn.app.edmentum.com/EdAssets/720701a96d8d4560bf0e0b6f2fc70e4f?ts=635296001205670000

Answer 1

hi - little help - than you see the circle what contain B has a radius equal 2 units - yes ?
and now than you check the circle what contain B' so has a radius equal 1 unit - yes ?

so how you get from 2 this 1 , what scale factor using ?

hope helped understandably