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