Average value of a function worksheet
Flatten the function until it is a straight line that shuts in the same area. That height is its average value, and it is the integral divided by the width of the interval.
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Sigma Prep · sigmaprep.io/worksheets Name Average Value of a FunctionDate Period Find the average value of each function on the given interval.
Free math worksheets at sigmaprep.io/worksheets© 2026 Sigma Prep |
Sigma Prep · sigmaprep.io/worksheets Name Average Value of a FunctionAnswer keyVersion 1Date Period Find the average value of each function on the given interval.
Free math worksheets at sigmaprep.io/worksheets© 2026 Sigma Prep |
How to do these
Find the average value of on
- The integral of x squared from 0 to 3 is 9.
- The interval is 3 wide.
- So the average value is 9 over 3, which is 3.
The answer is .
Where students go wrong
Forgetting to divide by the width. The integral is the area, not the height, and it only becomes an average once it is spread across the interval it came from.
Also called mean value theorem for integrals, average value or mean value of a function.