Question

Circle S has an equation of (x + 16)2 + (y – 9)2 = 4. What is the center and radius of circle S?

Answer 1

A circle with center (h,k) and radius r has the equation\[(x-h)^2+(y-k)^2=r^2\]

Answer 2

So in this case, the center is (-16,9) and the radius is two.

Answer 3

Thank you! :)