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...
Epically long waits and a total breakdown in communication.
The "Devil in the Ozarks" escaped on 25 May by wearing a disguise meant to "mimic law enforcement".
“Skibidi Ohio" is a fusion of the viral Skibidi Toilet meme and the "Only in Ohio" meme, both known...
Unhappy, to put it mildly. As the star of the show, Mulgrew had a great deal of influence with the e...
Even the best batteries fall far short of animal metabolism for energy storage. Fueling robots with...
Nice Or Cannes: Which To Choose for 3-4 Days 11 min read Nice and Cannes are two of the star destina...
Yes. Avarnas were generally prohibited from deinking or fetching water from common wells and ponds....
Ed White made a historic spacewalk on June 3, 1965. Here's what the spacewalk studied.
'Succession' Creator Jesse Armstrong talks about the impersonal, depressing homes of the modern uber...
Maycee Barber addresses the medical emergency that led to her UFC Vegas 107 main event fight against...