Here is the problem...(adsbygoogle = window.adsbygoogle || []).push({});

Find the exponential function [tex]y=Ce^{kt}[/tex] that passes through the points (0,4) and (5,1/2).

Just by looking at the problem, I know...

[tex]y=4e^{\frac{-3x \ln{2}}{5}}[/tex]

...works, but how do you actually work out the problem? I've done it before given a point and the slope at that particular point, but I don't really know how to do this.

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