Claire's math teacher finds that there's roughly a linear relationship between the amount of time students spend on their homework and their weekly quiz scores. This relationship can be represented by the equation y, equals, 66, plus, 6, point, 5, xy=66+6.5x, where yy represents the expected quiz score and xx represents hours spent on homework that week. What could the number 6.5 represent in the equation?

Answer
Multiple Choice Answers
A student's expected quiz score if they spent 72.5 hours on their homework.
The change in expected quiz score for every additional one hour students spend on their homework.
How many hours a student spends studying all year.
A student's expected quiz score if they spent no time on their homework.

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