Question

Question: Describe what a function is.

Answer 1

Apex Definition: A rule that tells you how one number depends on another. For each input number, there is exactly one output number.

A function takes in something (the input) and gives back something else (the output)

Answer 2

Answer: Really hope this helps you.

Explanation: it depends in what you are using it for if you are using it for math then it means a relation from a set of inputs to a set of possible outputs where the input and the output is related exactly.