Overview of functions - Online Math - What are functions

The video tutorial provides an overview of functions, explaining them as relationships between two sets. It covers the concept of input and output, unique mapping rules, and naming conventions for functions. The tutorial also discusses the domain and range of functions, including the concept of implied domain, and highlights situations where a function relationship may not exist.

What happens if an element in set A does not map to any element in set B?

How can you represent a function using different names?

What is an implied domain and when does it occur?