HELP!

I need IMMEDIATE help. I missed pre-cal today (I was ill, not skipping, really, I have a note from the nurse to prove it), so if anyone is in pre-cal at Bellaire PLEASE help me! Someone told me he gave an example of how to do a GOOD demo problem, then assigned one for homework, but I have to do the homework and I don't know how exactly he wants it! So if anyone is in pre-AP pre-cal at Bellaire and knows what I'm talking about, PLEASE comment (if you read this today).