Question

kevins 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 lines y - intercept represent?

Explanation:

In a linear regression model \(y = mx + b\) (where \(y\) is the quiz score, \(x\) is the time spent on homework), the \(y -\)intercept \(b\) occurs when \(x = 0\). When \(x = 0\) (no time spent on homework), \(y=b\). So, the \(y -\)intercept represents the quiz score of a student who spends \(0\) hours on homework per week.

Answer:

The \(y -\)intercept represents the quiz score of a student who spends \(0\) hours on homework per week.