Question

I don't understand what functions are. They basically in 10th grade, give something like:

\(\Large \color{purple}{\rightarrow f(x) = \text{Some Polynomial} }\)

Answer 1

what's the question?

Answer 2

There's no question, I just wanna understand what they are used for.

Answer 3

you want the WHOLE concept of functions explained? mon dieu

Answer 4

where to start..

Answer 5

in many fields mathematic is used in, there exist two type of cuontities: constant and variable. Function is the way to express this variable cuontities depending on some other cuontities.

Answer 6

Okay, Khan Academy would be used now :P

Answer 7

hope dear old khan can help you :p