$2\mathrm{.}16$ It is general practice in engineering and science that equations be plotted as lines and discrete data as symbols. Here are some data for concentration $(c)$ versus time $(t)$ for the photodegradation of aqueous bromine:

$\backslash$table$[[t,$min,$10,20,30,40,50,60],[c,$ ppm$,3\mathrm{.}4,2\mathrm{.}6,1\mathrm{.}6,1\mathrm{.}3,1\mathrm{.}0,0\mathrm{.}5]]$

These data can be described by the following function:

$c=4\mathrm{.}84e^{-0\mathrm{.}034r}$

Use MATLAB to create a plot displaying both the data $($using diamond$-$shaped, filled$-$red symbols$)$ and the function $($using a green, dashed line$).$ Plot the function for $t=0$ to $70$min.