Answer
For any log function of the form $y = log_b(x)$, $x = b^y$.
We also know that any number raised to the power of 0 is 1. Therefore for any $b$ where $y = 0$, $x=1$.
Work Step by Step
For any log function of the form $y = log_b(x)$, $x = b^y$.
We also know that any number raised to the power of 0 is 1. Therefore for any $b$ where $y = 0$, $x=1$.