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**e^(i*pi)** It says use a calculator for that reason - plot both graphs on the same axes and pick the appropriate values.

You know that $\displaystyle (x-8)^4 \geq 0$ and that the points (0,8^4) and (8,0) lie on it.

You know that $\displaystyle e^{2x}$ has the x-axis as an asymptote and the point (0,1) lies on it.

Here is the wolfram plot, I have limited the domain to make it easier to see: http://www.wolframalpha.com/input/?i=plot+{y%3De^%282x%29%2Cy%3D%28x-8%29^4}+between+0+and+5