Final answer:
To determine if a customer is eligible for Xfinity Mobile, you need to look at whether they have exceeded their contracted time allowance.
Step-by-step explanation:
In order to determine if a customer is eligible for Xfinity Mobile, you would need to look at certain criteria. One factor to consider is if the customer has exceeded their contracted time allowance. Let's say X represents the excess time used by one INDIVIDUAL cell phone customer who exceeds their contracted time allowance.
If X is equal to or greater than zero, it means the customer has gone over their allotted time and would be eligible for Xfinity Mobile. On the other hand, if X is less than zero, it means the customer has not exceeded their contracted time allowance and would not be eligible for Xfinity Mobile.
For example, if a customer's contracted time allowance is 100 minutes and they have used 120 minutes, X would be 20. This means the customer is eligible for Xfinity Mobile.