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## Homework Statement

## Homework Equations

## The Attempt at a Solution

So I have a situation where the results in a table (x and y), where y reaches 0. According to my understanding, mathematically, exponential decay can never reach 0, right?

So does that mean that I can't use an exponential curve of best fit with the results in my table (x = 0,1,2,3), (y = 4, 2, 1, 0) because y eventually equals 0?

My graph looks very similar to exponential decay, and my equation of best fit is an equation that would fit exponential decay, but the results don't exactly.

So as far as including a curve or line of best fit, how should I choose one?

thanks