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...
Movie moments have changed everything - literally everything - about what people THINK they know. Th...
I did not lose my parental rights but I went through “Hell” all because of my little sister who had...
I’m a transman with very long hair and no boobs any longer. I get misgendered all the time by my lon...
That £800,000 is just the tip of the iceberg. It astonishes me that warmth for pensioners is unaffor...
The new 4.0.0 patch optimizes the games' visuals and performance on Switch 2.
Well start eating more, why don’t you, can’t you afford it, or do you have an eating disorder? If it...
Mike Johnson, as close as Fat Hitler will ever get having an obedient puppy, will of course obey his...
She is very attractive. It is better for ugly guys or fat guy or nerds admire her afar. It is better...