(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 ( - 3, 2) and its radius is 16.
This information is enough to write the equation.
(x-( - 3))^2+(y- 2)^2= 16^2
⇕
(x+3)^2+(y-2)^2=256
