Hello, ccdalamp!

The center of the ellipse is the origin:Find the vertices of the ellipse: .

Choices: .

The denominator of the -fraction is: .

The denominator of the -fraction is: .

Since the larger denominator is "under the ", the major axis is vertical.

. . The vertices are always the ends of themajoraxis.

Hence, the vertices are 5 units above and below the center: .