Precalculus by Richard Wright

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Chapter 3: Exponential and Logarithmic Functions

Exponential functions can be used to model events that change by a fixed percent such as the value of a used car or the number of fish in a pond. Logarithmic functions can be used to model perceived energy such as the loudness of sound or the strength of an earthquake.

3-01 Exponential Functions

3-02 Logarithmic Functions

3-03 Properties of Logarithms

3-04 Solving Exponential and Logarithmic Equations

3-05 Exponential and Logarithmic Models