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Introduction to Logarithmic Functions: How to write in Logarithmic form and Evaluate Logs MHF4UI Wednesday October 17 th, 2012.

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Presentation on theme: "Introduction to Logarithmic Functions: How to write in Logarithmic form and Evaluate Logs MHF4UI Wednesday October 17 th, 2012."— Presentation transcript:

1 Introduction to Logarithmic Functions: How to write in Logarithmic form and Evaluate Logs MHF4UI Wednesday October 17 th, 2012

2 Logarithms will help us solve problems that have exponential relationships

3 A Logarithmic Function is the Inverse of an Exponential Function

4 The Logarithmic Function

5 How do I write an Exponential Function in Logarithmic Notation? “Raised to” “Gives us”

6 What kind of questions can I expect?

7 The Common Logarithm

8 You must also know how to Approximate Logarithms EstimateCheckAnalysis 2.5 Very close but too high 2.4Must lie very close to 2.5 2.47Almost there…. 2.465BINGO!!

9 Homework Questions:  Complete the Logarithmic Functions Handout

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