find exponential line going through 3 points

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I have 3 points:(0,0);(55,64);(137,200)

How could i get the formula going through those 3 points?

They line up in an exponential line like this one:

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Write the exponential as $f(x) = C \cdot a^{kx}$. Plugging your points, we get a non-linear $3 \times 3$ system on $C,a$ and $k$, which, in general, I don't think can be solved without numerical methods and approximations (i.e., using a calculator, matlab, Taylor series, etc)