Section 4.2 Logarithmic Functions

Before Starting this Section, Review

  1. 1 Finding the inverse of a one-to-one function (Section 2.9 , page 298)

  2. 2 Polynomial and rational inequalities (Section 1.6 , page 151)

  3. 3 Graphing and transformations (Section 2.7 , page 263)

Objectives

  1. 1 Define logarithmic functions.

  2. 2 Evaluate logarithms.

  3. 3 Derive basic properties of logarithmic functions.

  4. 4 Find the domains of logarithmic functions.

  5. 5 Graph logarithmic functions.

  6. 6 Use natural logarithms in applications.

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