(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

- The following table gives the population of a city over time:

2. Relevant equations

I know this equation: y = a(b)^{x}

and exponential growth: b = 1 + growth rate and b = 1 - decay rate

3. The attempt at a solution

I know from back in chapter 2 that first differences = linear model, second differences are the same = quadratic and if the 3rd differences are the same then its a cubic model...but that doesn't work here. I am completely stuck....how do I find the model. Any hints/tips/methods will be greatly appreciated!! Thanks!!

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# Write an exponential equation from this data (data table included)

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