Final answer:
The ADDMONTHS function calculates a new date by adding a certain number of months to an original date value.
Step-by-step explanation:
The function used to determine a new date by adding a specified number of months to a date value is ADDMONTHS. This function takes a date value as the starting point and adds a certain number of months to it, returning a new date. For example, if a user wanted to calculate a date that is 3 months from January 1, 2023, they could use the ADDMONTHS function with the original date and the number 3 as arguments.