examday

/TMUA

The following five graphs are, in some order, plots of $y=f(x)$, $y=g(x)$, $y=h(x)$, $y=\dfrac{\mathrm{d}f}{\mathrm{d}x}$ and $y=\dfrac{\mathrm{d}g}{\mathrm{d}x}$; that is, three unknown functions and the derivatives of the first two of those functions. Which graph is a plot of $h(x)$?