Which of these points lies on the ellipse x2+4y2=16x^2 + 4y^2 = 16x2+4y2=16?
(2,2)(2, 2)(2,2)
(4,0)(4, 0)(4,0)
(0,4)(0, 4)(0,4)
(2,3)(2, \sqrt{3})(2,3)