Looking around in your own country, discuss two practical applications in which “piecewise functions” are...

Step 1
Piecewise functions are functions which are defined by multiple fuction for different disjoint subdomain.
Example : consider signum function, it has domain $(-\propto ,\propto )$ and is defined as :
$Sgn(x)=\{\begin{array}{l}-1ifx<0\\ 0ifx=0\\ 1ifx>0\end{array}$
Practical applications in which piecewise function is used :
Example 1 : Taxi fare system - If the distance on the meter is within 1 km than $\mathrm{\$}5$ is taken and for further each kilometer $\mathrm{\$}2$ is taken. This scenario depicts peicewise nature.
Step 2
Example 2 : The scolarship program - If your annual income is less than $\mathrm{\$}10000$ than full scholarship of $\mathrm{\$}1000$ will be given otherwise no scholarship will be given. This scenario also have piecewise nature.