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...
The U.S. declined to label China a currency manipulator in a new Treasury report, but accuses Beijin...
Jerichosinner. Mute, Block & Report done. Condones and is active in bestiality. Recommend you do the...
Original question: What's your take on Eternal Sunshine of the Spotless Mind? How has it affected yo...
I think because it is something they have been around all their lives, so why not try it and see how...
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Troll question by Trump-fellating wankmaggot Jaydee Musk. You know he’s a troll because he supplies...
No American space mission has left the remains of a lost astronaut floating in the final frontier, b...
In my opinion, Nigerian scammers are not skilled at impersonating people. I have a long list of reas...
(Apologies ahead of time for the lengthy answer) I live in Florida. In 2012, I experienced a horrifi...