Find an equation of the ellipse with its center at the origin.

Question

center(0,0)
foci(2,0)(-2,0)
major axis=8

My answer is x^2/16 + y^2/15 = 1. Is this correct?

Answer 1

major axis = 8, so a = 8
foci (2,0), so c = 2

b^2 + c^2 = a^2
b^2 + 4 = 64
b^2 = 60

x^2/64 + y^2/60 = 1