what-is-the-standard-equation-for-a-circle-centered-at-h-k-with-radius-r

Question

What is the standard equation for a circle centered at (h, k) with radius r?

Accepted Answer

(x - $$h)^2 + (y$$ - $$k)^2$$ = $$r^2$$

Answer

(x - $$h)^2 - (y$$ - $$k)^2$$ = $$r^2$$

Answer

$$x^2$$ + $$y^2$$ = $$r^2$$

Answer

(x - $$h)^2$$ / $$r^2 + (y$$ - $$k)^2$$ / $$r^2 = 1$$