3 Tutorials that teach Introduction to Functions
Take your pick:
Introduction to Functions

Introduction to Functions

Author: Anthony Varela

This lesson will introduce functions.

See More
College Algebra

Do the math.
Our College Algebra Course is only $329.

Sophia's online courses not only save you money, but credits are also eligible for transfer to over 2,000 colleges and universities.*


Notes on "Introduction to Functions"

Key Terms


A relation between two sets matches elements of one set with elements of the other set


A relation in which every element in the domain corresponds to exactly one element in the range


The set of input values of a function or relation


The set of output values of a function or relation