Is the domain of a piecewise-defined function implied or explicitly described?

Piecewise functions are a group of sub-functions that have their own set of domain and range interval. Together, these sub-functions make up the total domain or range. Therefore, you need to explicitly define the interval because this sets the boundaries of each sub-function of the piecewise functions.

Look i don’t know the answer to this but someone else will so just wait a little bit longer