1. 3.3 Properties of Logarithms

2. Change of base Formula 1.) log 4 252.) log 2 12 3.) log 3 164.) log 5 22 Copyright © by Houghton Mifflin Company, Inc. All rights reserved. 2

3. 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

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

5. 5 Practice Problems Wkst 3.3 # 41-60 Quiz 3.2-3.3 tomorrow Hmwk – pg 243# 39-50, 52, 61-72