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=xยฒ Jesus, of course, spoke in parabolas. In those days it was like the Beatles at Sh...
Eg a parabola y=xยฒ Jesus, of course, spoke in parabolas. In those days it was like the Beatles at Sh...
This answer will be long, if you are too lazy to read, just skip it..๐๐๐, I'm just posting this o...
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Because in 1953 Stalin had planned his own Final Solution to the Jewish Question with the deportat...