Select the correct answer from each drop-down menu. A function is represented by the table.
ху
-2
vw
5-26
71-50
The rate of change of the function represented in the table is
For the given x- and y-values, the function is

Gravel is being dumped from a conveyor belt at a rate of 25 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. how fast is the height of the pile increasing when the pile is 14 ft high? (round your answer to two decimal places.) ft/min