A scale model of an oil tanker truck can hold 1 gallon of oil. If a trucking company wants the full size truck to hold 8000 gallons of oil what scale factor must they apply to the model?

"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.