I'm trying to figure out how to enter the following problem on my TI-84+SE:

"Graph the equation -2x-y=1 using slope-intercept form."

What keystrokes do I need to execute to do this? Thanks in advance for your help!

I don't know how to put y into equations either.

The problems I'm working on are not for a class, they're from books I'm studying to get ready for the CLEP test. I'm just trying to apply the calculator to the problems.

Roger