When you take a look at the sample essay, you’ll notice some absences: no underlines, no bold, no title page. Everything on your page should be double-spaced to the same degree: no extra spaces between paragraphs or before and after your title. Center your title, but don’t advertise. Last name + page number continues onto your works cited page, and please remember to change the font and font size up there to match the rest of your paper.
Here are two scans from A Canadian Writer’s Reference guide by Diana Hacker for you to use as one more exemplar: