Is there a type of function where every point has exactly one tangent line passing through it? If yes, what is this type of function called?

Eg a parabola y=x² Jesus, of course, spoke in parabolas. In those days it was like the Beatles at Sh...
Eg a parabola y=x² Jesus, of course, spoke in parabolas. In those days it was like the Beatles at Sh...
Because that’s what you do when your neighbour needs help. You help. As for “Canadians don’t particu...
Yes, back in the 80s my friend Steve and I used to go to pretty much every heavy metal and rock show...
simple. Cause they have several cans of sausages stored that they can have as they please. While men...
I answered this question around 1990, on Usenet. So here we are over 40 years later, with much the s...
Two reasons: emotionally-driven Jealous Dog Syndrome, and a complete failure to understand how the w...
its usually not both arms since you got your injection into one arm only when I got my first vaccina...
Actually, I beg to differ. White women are not overly emotional. In fact, white women are some of th...
Sixteen gigabytes used to be the bragging right of a mid-range gaming PC, yet a mundane retail slip...
Does He? Where? Homophobia is a billion dollar business for Corporate Christianity. Isn’t it? Try to...
well me and my dad have sex till this day. My mum has night shifts so I would be home alone with my...
He's a traitor, a useful idiot to Vladimir Putin. A four-time bankrupt who managed to bankrupt a cas...