Intermediate Algebra Tutorial 15: The Slope of a Line

May 29th, 2015
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The slope of a line measures the steepness of the line. Most of you are probably familiar with associating slope with "rise over run". Rise means how many units you move up or down from point to point. On the graph that would be a change in

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Intermediate Algebra Tutorial 2: Algebraic ExpressionsLearning Objectives After completing this tutorial, you should be able to: 1. Know what a variable is.2. Know what an algebraic expression is.3. Evaluate an algebraic expression given a value for a variable.4. Translate an English phrase into an algebraic expression Introduction This tutorial will go over some key definitions and phrases used when specifically working with algebraic expressions as well as evaluating them. It is very IMPORTANT that you understand some of the math lingo that is used in an algebra class, otherwise it may all seem Greek to you. Knowing the terms and concepts on this page will definitely help you build an understanding of what a variable is and get you more comfortable working with them. Variables are a HUGE part of algebra, so it is very important for you to feel at ease around them in order to be successful in algebra. So let's get going and help you get on the road to being variable savvy. Tutorial Variable A variable is a letter that represents a number. Don't let the fact that it is a letter throw you. Since it represents a number, you treat it just like you do a number when you do various mathematical operations involving variables. x is a very common variable that is used in algebra, but you can use any letter (a, b, c, d, ....) to be a variable. Algebraic Expressions An algebraic expression is a number, variable or

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