- In the expression bn, n is called an exponent and b is the base
- The expression is read as b to the power of n, or b raised to the nth power
- If the exponent n is positive, b is multiplied by itself n times
- Example: b3 = b x b x b
- If n is negative, the reciprocal of b is multiplied by itself n times
- Example: b-3 = (1/b) x (1/b) x (1/b)
- If n = 0, the expression bn evaluates to 1, i.e., b0 = 1
- Application: Expressing a number in Scientific Notation