Logarithm Functions

In this section now we have to move into logarithm functions. It can be a tricky function to graph right away.  There is some different notation which you aren't utilized to and some properties may not be all that intuitive. 

 Definition of the logarithm function

Following is the definition of the logarithm function.

If b is any number such that b = 0 and b ≠ 1 and x > 0 then,

          y = log_b x     is equivalent to           b ^y  = x

Usually we read this as "log base b of x".