SOLUTION
Equation of an elipse is given by the formula
[tex]\frac{x^2}{a^2}+\frac{y^2}{b^2}=1[/tex]
where a is the vertical position and b is the horizontal axis.
So from the question, a = 5 and b = 3.
The equation becomes
[tex]\begin{gathered} \frac{x^2}{3^2}+\frac{y^2}{5^2}^{}=1 \\ \\ \text{That becomes } \\ \\ \frac{x^2}{9^{}}+\frac{y^2}{25^{}}^{}=1 \end{gathered}[/tex]
We can see this on the graph below
