Jamie wants to find the derivative of $f(x)=-3e^{x-5}$ at the point $x=5$. His table below shows the slopes of the secant lines to the graph of $f$ between the points $(5,f(5))$ and $(x,f(x))$ for $x$-values that get increasingly closer to $5$: $x$|Slope of secant line, $\dfrac{f(x)-f(5)}{x-5}$ :- | :- | :- $4.9$| $-2.8549$ $4.99$| $-2.9850$ $4.999$| $-2.9985$ $5.001$| $-3.0015$ $5.01$| $-3.0151$ $5.1$| $-3.1551$ **From the table, what does the derivative of $f(x)=-3e^{x-5}$ at $x=5$ appear to be?** [[☃ input-number 1]]