Quenching is the process of immersing a hot metal object in a bath for a specified time to obtain certain

properties such as hardness. A copper sphere $25$ mm in diameter, initially at $300\backslash$deg C$,$ is immersed in a bath at

$0\backslash$deg C$.$ The following table gives measurements of the sphere$$s temperature versus time. Find a functional

description of these data using commands, not GUI. Plot the function and the data on the same plot.