Chapter 11 : Rational Equations and Functions : 11.2 Direct and Inverse Variation


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	11.2 Direct and Inverse Variation 11.3 Simplifying Rational Expressions 11.4 Multiplying and Dividing Radical Expressions 11.5 Adding and Subtracting with Like Denominators 11.6 Adding and Subtracting with Unlike Denominators 11.7 Rational Equations Maintaining Skills

	Chapter 11 : Rational Equations and Functions 11.2 Direct and Inverse Variation

11.2 Extra Example Click here for an Extra Example. 11.2 Keystroke Help Click here for Keystroke Help. 11.2 Problem Solving Help Help for Exercises 31-33 on page 643 One way to tell what type of variation equation applies is to decide what happens to one variable if the other variable is increased. For example, if one variable increases when the other is increased, then the equation is a direct variation equation. On the other hand, if one variable increases when the other is decreased then the equation is an indirect variation equation. Be careful, this approach only applies to situations where k > 0, as is the case with Exercises 31-33. * PLEASE NOTE: To view our Extra Example or Keystroke Help pages, you must have the Adobe Acrobat Reader installed on your computer. You may download the Reader by clicking here if you do not already have it installed.