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# Lesson 31: Logarithms

Course Topic(s): Developmental Math | Logarithms

The lesson begins with an application problem to motivate the necessity and use of a logarithm. The formal definition linking logs and exponents is then introduced. Exercises in writing exponential equations as logarithms follows before a calculator based method for approximating logarithmic values is discussed. The common log, i.e. logs of base (10), is introduced and a procedure for solving common log equations with a calculator is presented, along with various caveats about proper syntax for the calculator. The lesson concludes with exponential modeling problems where logs may be employed to find the desired exponent.

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 Current rating: 2.9 number of votes: 299 1 2 3 4 5

Subject classification(s): Algebra and Number Theory | Algebra | Algebraic Manipulation | Functions

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

This resource was cataloged by Bohdan Rhodehamel

Publisher:
Developmental Mathematics Collection

This review was published on December 13, 2011