At 6
a. m. the temperature was -8c. at noon the temperature was 3c. what was the change of temperature between 6
a. m. noon?

"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.

it is 10.6 according to my calculations