DeLaIS The following table shows the daily receipts in millions of dollars of the movie "Avatar" for successive Fridays after its opening on Friday 18 December 2009. Weeks $Receipts 2 68.49 5 34.944 8 23.611 11 8. 118 14 2.047 17 1.002 20 0.425 23 0. 12 26 0.045 Estimate the instantaneous rate of change of daily receipts 8 weeks after the opening day. Question Help: Video Message instructor Submit Question Jump to Answer Question 6 Go/1 pt 9 5 9 0 Details The point (-14, 5) lies on a differentiable function f(x). The tangent line to f(x) at x = -14 also goes through the point (-9, 0). What is f'(-14) ? f'(-14) =