Answer:
(A)[tex]\dfrac{24-79}{12-2}[/tex]
Step-by-step explanation:
Given the trend line which goes through (2, 79) and (12, 24).
[tex]Slope, m=\dfrac{y_2-y_1}{x_2-x_1} \\x_1=2, y_1=79,x_2=12, y_2=24\\$Therefore$:\\\\m=\dfrac{24-79}{12-2}[/tex]
The equation which can be simplified to find the slope of the trend line in the scatterplot is [tex]\dfrac{24-79}{12-2}[/tex]
The correct option is A.