Question

Wha is a vertex, a focus, an eccentricity, and a latus rectum
Steve
depends on the conic section.

google is your friend. Just look up "parabola" or "ellipse" etc for many discussions of their properties.
ej
Its on the ellipse. Google isn't helping.
Steve
that's rubbish.

Just typing in ellipse, I got many hits, and as usual, wikipedia had a very good article.

https://en.wikipedia.org/wiki/Ellipse