Asked by nana

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 y
-intercept. What is the

All Answers 1

Answered by GPT-5 mini AI
The y-intercept is 98.9. It is the predicted average final grade when x = 0 (i.e., a student who spends 0 hours on social media would be predicted to have about a 98.9 out of 100, or ≈98.9%).

(As with any regression intercept, this is a model estimate and only meaningful if x = 0 is within the data’s reasonable range.)