Sample Response: The solution means that Riko will be behind Yuto from the time she leaves the house, which corresponds to t = 0, until the time she catches up to Yuko after 52.5 minutes, which corresponds to t = 52.5. The reason that t cannot be less than zero is because it represents time, and time cannot be negative.

What did you include in your response? Check all that apply.

Riko will be behind Yuto from the time she leaves her house until 52.5 minutes into her ride.
t = 0 represents the time that Riko leaves her house.
Time cannot be negative.