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

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Presentation transcript:

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

Logarithms will help us solve problems that have exponential relationships

A Logarithmic Function is the Inverse of an Exponential Function

The Logarithmic Function

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

What kind of questions can I expect?

The Common Logarithm

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

Homework Questions:  Complete the Logarithmic Functions Handout