The math teachers at Belmont High School had never golfed before. They set up a friendly competition to see who would have the best round on a full course. The teachers practiced on a driving range the week before they played.
The statistics teacher tracked the number of hours practiced, x, and the final score, y, of each player.
The least squares regression line of this data set is:
y= –10.876x + 207.453
If a teacher spent one more hour practicing before playing, the least squares regression line predicts that his or her score would be______ points lower.