The points graphed below show how a student’s GPA (grade point average) changes based on the number of hours the student spends playing video games during the school year. The line on the graph below is a model for the data. What is the meaning of the slope of the line in the context of the problem?
A. A student’s GPA goes down approximately 1 point for every 10 hours spent playing video games.
B. A student’s GPA goes down approximately 10 points for every 3 hours spent playing video games.
C. A student’s GPA goes down approximately 10 points for every hour spent playing video games.
D. A student’s GPA goes down approximately 3 points for every 10 hours spent playing video games.