Exercise 58 Page 803

(x- h)^2+(y- k)^2= r^2 In this form, ( h, k) is the center of the circle and r is its radius. We are told that the center of the circle is ( 2, -5) and its radius is 16. This information is enough to write the equation. (x- 2)^2+(y-( -5))^2= 16^2 ⇕ (x-2)^2+(y+5)^2=256 Therefore, the correct answer is D.