Question

AB is the diameter of a circle with center P. The coordinates of the endpoints of the diameter are (1,3) and (6,6). What are the coordinates.

Answer 1

of the center?

The center of any circle is the midpoint of any of its diameter. Here, use the midpoint formula for (1, 3) and (6, 6).

Answer 2

1/2(1+6), 1/2(3+6)

Answer 3

did I write that right?

Answer 4

7/2,9/2
so r is the distance between (1,3) and (7/2,9/2)
so now I use the disatance formula???

Answer 5

Yes. :)

Answer 6

Oh I got now its (3.5,4.5) Thanks!

Answer 7

:))