Logarithms – logs, for short – are a perennial for the math tutor.

What is a log?  You see the button on your calculator, but only in high school (if ever) do you likely find out what it means.

First, we need some review:

Now, we show a simple log equation:

This log equation is read as follows:

The exponent you would put on 2 to make 8 is 3.

Of course, it’s true:

When you see a log with no base written, the base is 10.

There is a great deal more to say about logs – which we will, in future posts.

Enjoy the sun:)

Jack of Oracle Tutoring by Jack and Diane, Campbell River, BC.