Your teacher surveyed the class to determine the number of hours that each student spen on social media. Your teacher created a table and scatterplot graph that displayed the number of hours and the average final grade based on the hours. The trend line (equation

for the data is y = -7.2x + 98.9. Interpret the slope. How many points does the average
final grade decrease for 1 hour on social media? (1 point)

The slope of the trend line is -7.2. This means that for every 1 hour increase in social media usage, the average final grade decreases by 7.2 points.