Lets set a -1 and b 3 so that a is the left side of the interval and b is the right side of the interval. This precalculus video tutorial explains how to calculate the average rate of change of a function over an interval. The first point is 00 and the second point is 16.
Find the ratio of the changes.
You then multiply this decimal by 100 to get the average percentage. Calculate average rate of change in Excel To calculate the average rate of change the average bicycle speed in Excel you can easily do as follows. Change in x - 2 - -6 4. From the given fx x 2 9x a 2 b 7.