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How do I plot a rate? I've got a rate of exponential growth per year and I want to plot this, and see where it gets to in 10 years, or a thousand years.

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Plot the derivative! – draks ... Jul 16 '12 at 6:44

You could plot the function $e^{rt}$ for different values of $t$ with $r$ being your annual exponential growth rate. Then you could evaluate this function at $t=10$ or $t=1000$.
Is this what you were looking for?

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Plot in with a log scale on the y axis. Then the line will be straight and it will be easy to see where it is going.

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