An ellipse has vertices along the major axis at (0, 1) ) and ( -9)The foci of the ellipse are located at (0, - 1) and ( -7) The equation of the ellipse is in the form below. Which is a correct value for one of the variables shown in the equation ? ((y - k) ^ 2)/(a ^ 2) + ((x - n) ^ 2)/(b ^ 2) = 1 a = 10 b = 4 h = 3 k = 0