Exponential & Log Functions  Exercise 4  Convert Exponentials to
Log Form
Convert each exponential statement to log form by using the
property y = a^{x} implies that log_{a}y = x.
Then use your calculator to find x. In the last two problems the
Division Property of Equality is also used.
The Justification Has Been Provided  No Other Justification is
Needed
STATEMENT 
JUSTIFICATION 
10^{x} = 99
e^{x} = 40
e^{2x} = 40
10^{4x} = 99

Given^{ }
y = a^{x} implies that log_{a}y = x
Division Property of Equality (Used to Solve for x)

