Answer
The graph of $\frac{x^2}{25}+\frac{y^2}{20}=1$
Work Step by Step
$25\gt20$: major axis is horizontal.
$a^2=25$
$a=5$
Vertices: $(±5,0)$
Also, when $x=0$:
$\frac{0^2}{25}+\frac{y^2}{20}=1$
$y^2=20$
$y=±\sqrt {20}\approx±4.472$
It gives us the endpoints of the minor axis: $(0,±4.472)$