Algebra 2 Lesson #21 Introduction to Relations and Functions

In this lesson, we will learn about relations and functions in math. What is a relation in math? A relation is any set of ordered pairs. What is a function in math? A function is a special type of relation where each x-value is associated with exactly one y-value. Additionally, we will cover the concept of domain, which is the set of allowable x-values and range, which is the set of allowable y-values.