Skowhegan Area High School
Contemporary Mathematics In Context                                                                                      skowbutton msadbutton
Topics
Introduction
Inverses
Horizontal Line Test
Restricting Domain
Composition Functions
Common Logs
Exponential to Log. Form
Rules of Logarithms
Logarithmic Scales
 
 
 
 
 
 

 

*Common Logs are have a base of 10. Remember, a base must not be equal to 1.
*Common Logs are the inverse of the exponential function

The mathematical definition of a log is:
=y if and only if =X
So, if =X, then y=

Always remember, when there is no base unit shown, then it is understood that the base unit is 10.