A line of best fit for a scatterplot modeling the number of hours studied () and the exam score () for a group of students is given by the equation . What does the slope of this line represent in the context of the problem?
The predicted exam score for a student who studied 0 hours.
The predicted increase in exam score for each additional hour studied.
The maximum possible exam score.
The number of hours a student needs to study to get a perfect score.
