The document outlines the key formulas for circles, parabolas, ellipses, and hyperbolas in analytic geometry. Circles are defined by the formula (x - h)2 + (y - k)2 = r2, where (h, k) is the center and r is the radius. Parabolas are defined by formulas involving (x - h)2 or (y - k)2 and either 4p(y - k) or 4p(x - h) depending on the orientation, with a vertex at (h, k) and a focus and directrix. Ellipses are defined by the formula a2 - b2 = c2 or a2 = b2 + c