I'm a bit lost at the moment

I was unfortunately absent on the day of graphing off-center conics in our Algebra 2 class. I've got the notes, but the teacher refused to teach me the subject before or after class. I'm going in tomorrow before school to talk with her, but in the meantime, I could use some help with this.

For instance;

How do I write an equation and graph the ellipse with foci at (4,2) and vertices at (4,4) and (4,-8) ?

I understand standard form, but I don't understand how to add the center points.

Thanks in advance to everyone!