Question

Zoey'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 does the line's y-intercept represent?





(1 point)
Responses

The change in expected quiz score for every additional one hour students spend on their homework.
The change in expected quiz score for every additional one hour students spend on their homework.

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

How many hours a student spends studying all year.
How many hours a student spends studying all year.

A student's expected quiz score if they spent no time on their homework.

Answer 1

The correct response is:

**A student's expected quiz score if they spent no time on their homework.**

The y-intercept of the line of best fit represents the predicted value of the dependent variable (quiz score) when the independent variable (hours studied) is equal to zero. In this context, it indicates what the expected quiz score would be for a student who does not spend any time studying.