Where should I put the coordinates?

I may be wrong but,

first coordinate is (3,8)

second coordinate is (7,8)

third coordinate should be a total of 8 square yards (down)

it should form a right triangular shape (triangle with 90 degree angle

a. the residual plot for model 1 has a random pattern and is a good fit for the data.

"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.