The table gives the data points on this curve: distance 0 10 20 30 40 50 60 70 80 90 100 elevation 5775 7745 7346 8044 9419 11501 9276 9055 10103 8971 8076 We want to use our formula for an average: b = - J f(2) dx, but we don't know f (x)! Approximate the average elevation of this century ride