Viewing Saved Work Revert to Last Response 18. [-/2 Points] DETAILS LARAPCALC10 5.R.072. Find the average value of the function on the interval. F( x ) = x2 + 9; [-6, 6] Find all x-values in the interval for which the function is equal to its average value. (Enter your answers as a comma-separated list. ) X = Submit Answer 19. [-/1 Points] DETAILS LARAPCALC10 5.R.042. hp ? 144 @ # 2 3 4 6 7 8 O ab Q W E R T