###### Asked in AlgebraProbability

Algebra

Probability

# What does exponential mean?

## Answer

###### Wiki User

###### March 30, 2008 10:03PM

Increasing by powers of 10.

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### How do you know if an equation is exponential?

Basically, in an exponential expression (or equation) you have
the independent variable in the exponent. For example:
5 times 10x
The general form of an exponential function can be written
as:
abx
or:
aekx
where a, b, and k are constants, and e is approximately 2.718.
Note that just having a power doesn't mean you have an exponential
equation. For example, in
x3
the variable does NOT appear in the exponent, so it is not an
exponential expression.