3.3 Properties of Logarithms

Change of base Formula 1.) log ) log ) log ) log 5 22 Copyright © by Houghton Mifflin Company, Inc. All rights reserved. 2

3 Definition: Logarithmic Function Product Property: log a (u·v) =log a u + log a v Quotient Property: log a (u/v) = log a u – log a v Power Property: log a u n = nlog a u Other Properties

Examples 1.) 2.) 3.) Copyright © by Houghton Mifflin Company, Inc. All rights reserved. 4

5 Practice Problems Wkst 3.3 # Quiz tomorrow Hmwk – pg 243# 39-50, 52, 61-72