About This Lesson
http://www.freemathvideos.com In this math tutorial I describe how to find the domain of a function by determining when the bottom of a rational function is zero and when the root is negative. I also might look at the graph and determine the intervals for the domain of the function. For a rational expression we set the bottom of the rational expression to zero and solve for x. For a function with an even root we set the radicand greater than or equal to zero and solve for x. I show how to solve math problems online during a live classroom. 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. I post all of my videos on youtube but if you are looking for other ways to interact with me and my videos you can follow me on the following pages: Tumbler: www.mrbrianmclogan.tumblr.com,Blogger: www.mrbrianmclogan.blogspot.comTwitter: @mrbrianmcloganFacebook: mrbrianmcloganYoutube: www.youtube.com/mrbrianmclogan
