Question

what is the definition of a math function?

Answer 1

A function is "a expression or equation involving one or more variables".

For example:

(x² + 7a) is a function.


hope this helps

Answer 2

In mathematics, a function is a relation where each input (x) has exactly one output which we can call Y.There are many different ways we can represent functions including mapping diagrams, graphs, and ordered pairs.