Can someone help me get an exact quote from FAMILY GUY?

Question

There was an episode with a flashback or non-sequitur that went something like this: There was a person asking for directions, or something, at a gas station and the worker said something about a train leaving for another city, like a story problem, and it ended in, "Solve for x." What is the full exact quote?

Answer 1

Find it here:

http://www.planet-familyguy.com/pfg/subtitles.php?a=episode&id=20


All "He's a family guy"
Chris Griffin Dad, can you help me with my math?
Chris Griffin Mr. Shackleford says if I don't learn it, I won't function in the real world.
Man What you gotta do is go down the road past the old Johnson place.
Man You're gonna find two roads, one parallel and one perpendicular.
Man Keep going until you come to a highway that bisects it at a 45 degree angle.
Man Solve for x.
Peter Griffin Math.
Peter Griffin Math, my dear boy, is nothing more than the lesbian sister of biology.
[Knocking]
Doug Hello, sir.
Peter Griffin Enough with the foreplay. What are you selling?
Doug Well, I was gonna try to sell you some "handsome cream" but I can see you already bought out the store!

Answer 2

Wow, I actually remember what scene you're talking about, but I can't think of the episode. You could try looking up something at familyguyfiles.com (or google family guy). Do you remember what season the episode was aired? Is it a relatively new episode or an old one? I'll do some checking on my DVDs and get back to you if no one else is able to help. :)