The diameter is 12. Please help me the person with the correct answer will get the crown.

Answer is in the photo. I can only upload it to a file hosting service. link below!

cutt.ly/nz6VGda

"image"

step-by-step explanation:

in most of these problems, the notation is that the point with a "prime" is the image of the point without. that is, b' is the image of b.

here, there is no dilation or reflection. there is simply translation (with no direction shown). which figure you call the "preimage" and which one you call the "image" is up to you. as a matter of convention, the naming is as described above.