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...
Nearly every prediction about climate change by the alarmist activists has been wrong. Sadly, most o...
Oil prices rose after OPEC announced a modest 411,000 bpd output increase, defying bearish expectati...
Michael Cole confirmed the main event of WWE Money in the Bank during the Countdown pre-show to Satu...
IT does not matter, mainly because it does not exist. My problem is that people who try to shove the...
Caro, io non ti sono mai piaciuta, faceva tutto parte di un piano che ti avrebbe portato a guadagnar...
I refuse to be a female. Master Chief needs his ‘weapon’. I like to ‘shoot my gun’. He beats not tas...
Eating more ultra-processed foods is linked to early signs of Parkinson’s. People who eat a lot of u...
The flip phone foldable is a popular form factor, but Google has yet to make its own “Pixel Flip.” A...
There are multiple reasons why Trump does not deal with real issues, ignorance being a huge one. Tru...
An intriguing detail to the saga.
One needs to realize that redemption is not perfection. The redeemed must realize their flaws. So, i...