Copy and complete. Use today’s class work as needed.

1. $\log_55=$

   Answer (a):

   ${1\:\text{because}\:5^1 = 5}$

2. $\log_51=$

   Answer (b):

   $0 \ \text{because}\ 5^0 = 1$

3. $\log_5\left(\frac{1}{5}\right)=$

   Answer (c):

   $-1\text{ because } 5^{-1} = \frac{1}{5}$