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 between the …

Many functions are equations. But, they don't have to be. If you have a set of ordered pairs where each x-value relates to only one y-value, then you have a function. For example: { (2,5); (3,8); (5,7); (-3,6) …

A function is defined by the rule that for every input value (independent variable), there is a unique output value (dependent variable). The key criterion for a relationship to be a function is that each …

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

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! Power up your …

Learn to recognize if a function is linear. Created by Sal Khan and Monterey Institute for Technology and Education.

How can we tell if a graph represents exponential or linear growth? One of the hallmarks of exponential growth is that the graph will get steeper and steeper over time. Linear growth, on the other hand, will …

If we get an expression that is equivalent to f (x), we have an even function; if we get an expression that is equivalent to -f (x), we have an odd function; and if neither happens, it is neither!

How can you determine whether a function is even, odd, or neither by using just the equation of the function and not by graphing it?

Yes, a function can be neither even nor odd since it is possible to have a graph that is not symmetric with respect to the y ‍ -axis or the origin.