Question

Medal to whoever can answer this question

If the diameter of a circle has endpoints A(7, 2) and B(-1, 8), where is the center of the circle?

A- C(4,3)
B- D(3,5)
C- E(9,12)
D- F(5,8)
G- G(4,5)

Answer 1

That's B, but let me say why: You need to use the midpoint formula. This is both values of x divided by two, then both values of y divided by two. That 'x' and 'y' you're left with are the coordinates of the midpoint. As this is a diameter, exactly halfway between will be the center of the circle.

Answer 2

thank you so much!