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...
On this version of the Yankees, you might be able to make a case that Weaver was the fourth-most imp...
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Even years later, it's the talk of the town.
There's a bunch of reasons that i can think of right now. :not enough support :friends/family influe...
I doubt she did, because that would mean that out of every three people on Sheffield railway station...