Think of linear as just a line. A linear function is one that, when graphed, forms a line. Linear functions are in the form: f(x) = ax + b, where a and b are constants.

Oops. Something went wrong. Please try again. Uh oh, it looks like we ran into an error. You need to refresh. If this problem persists, tell us.

Sal is given the formula of a linear function and the graph of another, and is asked to determine which function increases faster. Created by Sal Khan.

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

What is a linear function? A linear function is a type of function that produces a straight line when graphed. It follows the form y = m x + b , where m is the slope and b is the y -intercept.

Learn about linear equations and functions through interactive lessons and exercises on Khan Academy.

If you find yourself struggling to rewrite complex functions, you might want to brush up on the Operations with polynomials and Operations with rational expressions skills, which have their …

When distances, prices, or any other quantity in our world changes at a constant rate, we can use linear functions to model them. Let's learn how different representations, including graphs and …

Our mission is to provide a free, world-class education to anyone, anywhere.

About this unit We can write linear equations in different forms to reveal different features of the scenarios they describe. Let's get clever. Unit guides are here! Power up your classroom with …