Final answer:
The y-intercept represents the total hours of service.
Step-by-step explanation:
The y-intercept represents the total hours of service. In this situation, Yuson completes 2 hours of service each day. After 8 days, she has completed half of her required community service, which means she has completed 8 x 2 = 16 hours of service. Therefore, the y-intercept represents the total hours of service completed.