Question

question
makayla’s math teacher plots student grades on their weekly quizzes against the number of hours they say they study on the pair of coordinate axes and then draws the line of best fit. what is the meaning of the ( x )-value on the line when ( y = 100 )?

chart: x-axis: time spent on homework per week (hours), y-axis: quiz score

answer
a student’s expected quiz score if they spent 100 hours on their homework.
the number of hours a student actually spent on homework before earning a score of 100 on the quiz.
the number of hours a student should spend on their homework to expect a score of 100 on the quiz.
a student’s actual quiz score after spending 100 hours on their homework.

Explanation:

The x-axis represents time spent on homework (hours), and the y-axis represents quiz score. The line of best fit models the relationship between these two variables. When y=100 (quiz score=100), the corresponding x-value on the line indicates the expected hours of homework needed to get that score.

Answer:

B. The number of hours a student should spend on their homework to expect a score of 100 on the quiz.