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Lesson 21: Variation  

The lesson begins with a comparison of data tables and graphs of two functions, one directly proportional (cost of gas) and the other exponential (population), before a definition for direct variation is introduced. Direct variation is then linked to linear function (f(x)= kx) and the scaling property of direct variation is examined (i.e. a multiple of the independent variable will always correspond to that same multiple of the dependent variable). Direct variation with a power of (x) follows with a test for direct variation before indirect variation and indirect variation with a power of (x) are introduced.

Resource URL: http://www.curriki.org/xwiki/bin/view/Coll_Group_SanDiegoCommunityCollegesDevelopmentalMathExchange/Lesson21Variation?bc=;Coll_Group_SanDiegoCommunityCollegesDevelopmentalMathExchange.IntermediateAlgebra;Coll_Group_SanDiegoCommunityCollegesDevelopmentalMa

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Creator(s): Bruce Yoshiwara (Pierce College) and Kathy Yoshiwara (Pierce College)

This resource was cataloged by Bohdan Rhodehamel

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