About this unit A function is like a machine that takes an input and gives an output. Let's explore how we can graph, analyze, and create different types of functions. Unit guides are here! …

Equations and functions are not the same thing, but they can be related in several ways. In this video, we obtain a function from an equation. The function represents the same relationship …

In general, to determine whether a function f is even, odd, or neither even nor odd, we analyze the expression for f (x) :

Determine whether the points on this graph represent a function. Now, just as a refresher, a function is really just an association between members of a set that we call the domain and …

Sal explains what inverse functions are. Then he explains how to algebraically find the inverse of a function and looks at the graphical relationship between inverse functions.

Odd functions are symmetrical about the x- and y-axis: f (x)=-f (-x). Let's use these definitions to determine if a function given as a table is even, odd, or neither.

Another way to visualize origin symmetry is to imagine a reflection about the x -axis, followed by a reflection across the y -axis. If this leaves the graph of the function unchanged, the graph is …

Given the formula of a polynomial function, determine whether that function is even, odd, or neither.

The definition of a function is that each input creates only one output value. For a function to have an inverse, the relationship must be that there is a 1-to-1 relationship between its input values …

Learn to determine if points on a graph represent a function. Created by Sal Khan and Monterey Institute for Technology and Education.