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

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Sally Cresswell · Accepted Answer

An exponential model is of the form A=A0ekt where A0 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 &amp;gt; 0, then the model represents a growing quantity and k is called as the growth rate. If k &amp;lt;0, then the model represents a decaying quantity and k is called as the decay rate. 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.

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

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