Question

Find an equation of the circle shown below.

Answer 1

A.

(x + 10)2 + (y − 10)2 = 289




B.
(x − 10)2 + (y − 10)2 = 289




C.
(x − 10)2 + (y + 10)2 = 289




D.
(x − 10)2 + (y − 10)2 = 17

Answer 2

1º find its center (a,b) and radius r. Then put in the form:
(x-a)^2+(y-b)^2=r^2

Answer 3

B?