LOGARITHMS
Definition: 
is the power to which
b must be raised to yield x.
In other words, 
= y is equivalent to
x = 
.
Example: 
= 3 means that 
= 1000.
Problem:
If 
= 3, find x.
Answer: 5
Solution: 
= 3 
= 125. Therefore,
x = 5
Problem:
If 
= x, find x
Answer: -2
Solution : 
= x, 
= .01. Therefore, x = -2
Problem:
If 
= 5, find x.
Answer: 32
Solution: 
= 5 
= x. Solution:
x = 32