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...

This video continues to look at evaluating functions by looking at examples of evaluating basic composite functions.

Sal draws a graphical representation of a function, f(x), and builds and evaluates other functions based on that function.

This video explores a listener's example of a function. You are given the composite function and one function, and you must find the other function.

A simple definition of f(x), function notation.

A simple definition of f(x). Function notation.