The function f is continuous on the interval (4, 15), with some of its values given in the table above.(in the picture)
Estimate the average value of the function with a Left Rectangle
Approximation, using the 4 intervals between those given points.
(I will vote and like, thank you)

The function f is continuous on the interval 4 15 with some of its values given in the table abovein the picture Estimate the average value of the function with class=