Trey believes there is a correlation between the number of texts sent in class and GPA. He collected data and found that the line of best fit for the data can be modeled by the equation y = 3.9 - 0.3x.
Identity the slope and the type of association.
A. The slope is -3.9, which indicates a negative correlation
B. The slope is 3.9, which indicates a positive correlation
C. The slope is 0.3, which indicates a positive correlation
D. The slope is -0.3, which indicates a negative correlation