1. ## New to Logarithms

Hey,

I am pretty new to Logarithms and my class just got into the topic. I just converted y = log(base 4)X into "x = 4^y" to get the exponential equation.

However when the problem starts to get more complicated I don't know how to convert.

Right now I am trying to figure out how to convert "y = log(base 3)(x-2)"

Any help would be appreciated! Thanks!

2. ## Re: New to Logarithms

Hey,

I am pretty new to Logarithms and my class just got into the topic. I just converted y = log(base 4)X into "x = 4^y" to get the exponential equation.

However when the problem starts to get more complicated I don't know how to convert.

Right now I am trying to figure out how to convert "y = log(base 3)(x-2)"

Any help would be appreciated! Thanks!
$\displaystyle a = \log_b{c} \implies b^a = c$

so ...

$\displaystyle y = \log_3(x-2) \implies 3^y = x-2$

3. ## Re: New to Logarithms

Thanks!! How would I then type that out with bases? I don't know how to do that. And I have been trying to plug it into a graphing calculator to check but have problems there as well. Thanks!

4. ## Re: New to Logarithms

You won't be able to input bases other than 10 or e into your graphics calculator. If you have any other base you will need to change the base to 10 or e.