A researcher plots the number of hours a student studies (x) against their test score (y) for a group of students. The line of best fit for this data is modeled by the equation .
Which of the following is the best interpretation of the slope of the line of best fit in this context?
For every additional hour studied, the test score is predicted to increase by 7 points.
A student who studies 7 hours is predicted to score 55 points.
The average test score for students who did not study is 7 points.
The maximum possible test score is 55 points.
