Jacob distributed a survey to his fellow students asking them how many hours they'd spent playing sports in the past day. He also asked them to rate their mood on a scale from 0 to 10, with 10 being the happiest. A line was fit to the data to model the relationship. Find the equation of the line of best fit. Then, estimate the mood rating for a student who spent 2.5 hours playing sports. Round your answer to the nearest hundredth.