Khan Academy: Introduction to Functions: Introduction to Functions

In this introduction to functions video, Sal intuitively defines a function and introduces the function notion f(x). He finishes the video by looking at a simple example of evaluating g(f(x)) without getting into the complexity of...

Let the video function as a catalyst to study functions. Young mathematicians watch a short video to continue learning about functions. They watch as the narrator completes function tables by evaluating functions for specific values,...

This interactive website provides a variety of lesson plans according to which standards you are applying and which textbook you use. Introduce functions to your class by having them construct single operation machines and create...

Video [9:53] evaluating combinations and compositions of functions including a piece-wise function. Focus is on understanding function notation.

Video [6:07] showing how to solve for a function given a composition of functions and one of the functions. Also shows how the problem can be solved using the different multiple choice options.

Video finding the product of a linear function and a cubic function by using the distributive property.

Video finding the sum of two quadratic functions.

This video demonstrates how to take a word problem and write a linear function that represents the problem.

Video finding the quotient of two quadratic functions and then simplifying by factoring.

In this video students figure out the domain of a function.