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# How can you tell whether an exponential model describes exponential growth or exponential decay? # How can you tell whether an exponential model describes exponential growth or exponential decay?

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Exponential growth and decay asked 2021-03-02
How can you tell whether an exponential model describes exponential growth or exponential decay?

## Answers (1) 2021-03-03
An exponential model is of the form $$A=A_0e^(kt)$$ where $$A_0$$ is the original amount or size of the entity at t = 0, A is amount or size at time t, and k is a constant representing the rate of growth decay.
If k > 0, then the model represents a growing quantity and k is called as the growth rate.
If k
So, we can tell whether an exponential model describes exponential growth or decay using the value of k.
Step 2
Conclusion:
Therefore, we can tell whether an exponential model describes exponential growth or decay using the value of k.

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