Calculate the average rate of change of the given function f over the intervals [a, a + h] where h = 1, 0.1, 0.01, 0.001, and 0.0001. (Technology is recommended for the cases h = 0.01, 0.001, and 0.0001.) (Round your answers to five decimal places.) f(x) = 7/x; a = 4

h = 1
h = 0.1
h = 0.01
h = 0.001
h = 0.0001