SOLUTION: Explain how you can use first and second differences to identify an exponential function.

Question 1090683: Explain how you can use first and second differences to identify an exponential function.
Answer by CubeyThePenguin(3113) (Show Source): You can put this solution on YOUR website!
Consider the exponential function below:

1, 2, 4, 8, 16, 32, 64, 128

Here are the first differences:

1, 2, 4, 8, 16, 32, 64

Here are the second differences:

1, 2, 4, 8, 16, 32

The first and second differences of an exponential function are themselves exponential functions.
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