Saw this joke on the xkcd forums today posed by Pippin:
Two of my friends in math class today:
“Dude, our slope is so undefined!”
“Straight up, bro.”
Spoiler hint: What is the slope of a horizontal straight line?
Another one from that forum:
Why don’t jokes work in base 8?
Because 7 10 11.
Spoiler hint: What is the slope of a straight VERTICAL line?
The spoiler hint was the funniest part. 🙂
I fail.