The scatterplot shows the number of hours a student studied for a test and their score on the test. A line of best fit is drawn.
[Imagine a scatterplot with points generally increasing from left to right, and a line of best fit going upwards.]
Which of the following statements about the slope of the line of best fit is true?
The slope is negative, indicating that more study hours lead to lower scores.
The slope is positive, indicating that more study hours lead to higher scores.
The slope is zero, indicating no relationship between study hours and scores.
The slope cannot be determined from the graph.