Which function would you use to add values to an existing list?

The function that is used to add values to an existing list is the append() function. It modifies the list in place by adding a single element to the end of the list. This is particularly useful when you want to build a list incrementally, as it allows you to add items one at a time without needing to recreate the entire list.

For example, if you have a list called my_list and you want to add the number 5 to it, you would do so with my_list.append(5). After executing this, 5 will be the last element of my_list.

The other functions listed don't serve this purpose. The pop() function removes an item from the list at a specified index (or the last item if no index is provided) and does not add values. The sorted() function is used to return a new sorted list from the elements of an iterable, which means it doesn't modify the original list or add values to it. The min() function is used to find the smallest item in an iterable, and similarly, it does not contribute to adding elements to a list.