Question

janelyss 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 y - value on the line when x = 1?
answer
a prediction of a
students quiz score if
they spent 1 hour on
their homework.
a prediction of a
students quiz score if
they spent 59.9 hours
on their homework.
a students actual
quiz score after
spending 1 hour on
their homework.
a students actual
quiz score after
spending 59.9 hours
on their homework.

Explanation:

A line of best fit is used to predict values. When \(x = 1\) (where \(x\) represents hours spent on homework), the \(y\) - value (quiz score) on the line of best fit is a prediction. It's not an actual score (since actual scores are the plotted points, not the line). Also, \(x = 1\) (not \(x=59.9\)) is relevant here.

Answer:

A prediction of a student’s quiz score if they spent 1 hour on their homework.