Functions

Suppose you meet a person who hasn't ever taken a math class and knows nothing about math, and you say you're taking pre-calculus.The person asks what it's about, and you say pre-calculus mainly involves functions. The person asks what a function is.How would you explain to that person what a function is in layman's terms (i.e., simple language that anyone can understand)?

Your description must correctly represent how a function works.Use at least a couple of sentences without the following words: input, output, domain, range, machine.

Try and create the best description. The goal of this discussion is to help firm up the understanding of what a function is. Thinking about how to explain a function in layman's terms will help dig deep into the concept of a function.