The endpoints of the diameter of a circle are (-6,2) and (10,-2). What are the coordinate of the center of the circle?

Answer 1

the center is at the midpoint of the line segment.
That is the average of the end values:

((-6+10)/2 , (2 + -2)/2) = (2,0)

Answer 2

7

Answer 3

I'm sorry, I'm not sure what you are asking for with "7". Can you please provide more context or information?