Your friend is taking a multiple choice exam and has not studied at all. They know that there will be six questions and that each question will have five choices (a, b, c, d, e). They decide to guess randomly the answer to each question. What is the probability that the first question they get right is the sixth question?

"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.