Logarithms/Base e

A logarithm without a base written is called what?

• Natural Log

• Exponential Log

• Common Log

• Infinite Log

What type of function is the inverse of a logarithm?

• Logarithmic

• Square Root

• Quadratic

• Exponential

Write the equation $4^3=64$ in logarithmic form.

•  $\log_43=\ 64$  

•  $\log_34=\ 64$  

•  $\log_{64}4=\ 3$  

•  $\log_464=\ 3$  

Evaluate $\log_28$ . 

• 3

• 4

• 16

• 64

Solve $\log_3n\ =\ 2$ . 

• 6

• 5

• 8

• 9

Solve $\log_610+\log_6x=\log_640$  

• x = 4

• x = 180

• x = 5

• x = 30

Express $\log_922$ in terms of common logarithms.  

•  $\log\frac{\text{22}}{9}$  

•  $\log198$  

•  $\frac{\log22}{\log9}$  

•  $\frac{\log9}{\log22}$