Final answer:
The initial value of Nathan's journey on his scooter, pertaining to the distance traveled, would be 0 miles, indicating he has not yet covered any distance.
Step-by-step explanation:
The question posed relates to determining the initial value when Nathan begins riding his scooter around the city at an average rate of 6 miles per hour. The initial value in this context often refers to the starting point of a given situation, which in the case of a distance-related scenario like this one, is typically the distance covered at the outset.
In Nathan's case, before he starts moving on his scooter, he has not traveled any distance. Therefore, the initial value of distance traveled at the moment he begins his journey would be 0 miles. This initial value represents the starting point from which we then measure his progress at the rate of 6 miles per hour.