Your teacher surveyed the class to determine the number of hours that each student spent 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?
The slope of the trend line is -7.2. This means that for every hour a student spends on social media, their average final grade decreases by 7.2 points.
