56. In the standard (x, y) coordinate plane, one of the following is an equation of the circle that can be inscribed in the ellipse 4x2 + 9y2 = 36. Which equation is that?

Answer and Explanation

Your Answer is

Correct Answer is H

Explanation

The standard formula of the ellipse is x2/9+y2/4=1, because the circle is embedded in the ellipse, so the radius of the circle is equal to the minor axis of the ellipse, That is 2; and because the center of the circle is the origin, the standard formula of the circle is H