A vector is an object that has both a magnitude and a direction
First we take the two points (-7,5) and (-5,9).
Compute the slope:

Then the linear relation may be in the following form

Since the point (-7,5) is on the line, then

The relation is then

.
We check that the other point are on the above line:

W
e have then a linear relation.
I believe it's
C. 314.16mi^2
If it's wrong just let me know and I'll help you the best I can enjoy and have a great day!
I counted myself because i don’t know a formula and i got 41 i hope i’m not wrong