Question

What is the equation of a circle whose center is at the origin and whose radius is 16?

Answer 1

x^2+ y^2= 256 ?

Answer 2

the general form is

\[(x - h)^2 + (y - k)^2 = r^2\]

centre (h, k) and radius r

hope this helps you find the equation

Answer 3

actually...you were right the first time