2015 Countdown Problem #22: The Curve

Geometry Level 1

The image shows a part of a graph. Below are four equations:

I: y=2015exy=\frac{2015}{e^x}

II: y=2015exy=2015{e}^x

III: y=2015xy={2015}^x

IV:y=e2015x y=e^{2015x}

Which equation(s), when plotted, will produce the graph above?

This problem is part of the set 2015 Countdown Problems.


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