Question

What is the center of the circle that has a diameter whose endpoints are (9,7) and (-3,-5)

Answer 1

Midpoint formula gives (3,1)

Answer 2

subtract 9-(-3) = 12

12/2=6 subtract 6 from 9

9-6 = 3

subtract 7-(-5) = 12

12/2 = 6

subtract 7-6 = 1

so center of circle is (3,1)