Find the equation of an ellipse that satisfies the following conditions: Ends of Major axis $\;(\pm3,0)$, Ends of Minor Axis $\;(0, \pm 2)$

Question

$\begin{array}{1 1}\frac{x^2}{9}+\frac{y^2}{4}=1 \\ \frac{x^2}{9}+\frac{y^2}{8}=1 \\ \frac{x^2}{4}+\frac{y^2}{9}=1 \\ \frac{x^2}{16}+\frac{y^2}{36}=1 \end{array} $