http://www.freemathvideos.com In this video I show I show you how to evaluate a function for a given value. We do this by plugging in" the value into the input variable of the function and then simplifying. I show how to solve math problems online during live instruction in class. This is my way of providing free tutoring for the students in my class and for students anywhere in the world. Every video is a short clip that shows exaclty how to solve math problems step by step. The problems are done in real time and in front of a regular classroom. These videos are intended to help you learn how to solve math problems