Use technology to find the line of best fit for the following data.
(β7,1), (2,9), (0,7), (β3,5), (β8,β2), (β1,2), (β6,β1), (β5,0), (0,5), (1,7), (β4,2), (3,7)
When the equation of the line is in the form y=mx+b, what is the value of m?
Enter your answer as a decimal rounded to the nearest tenths place, like this: 42.5