what is 0.81 as a fraction when the 81 is repeating?

Average rate of change = 5

Step-by-step explanation:

Average rate of change of a function is defined by the expression over the interval a ≤ x ≤ b,

Average rate of change =

Using this rule for the average rate of change of the function (defined by the table) over the interval 4 ≤ x ≤ 5,

Average rate of change =

From the table,

f(5) = 10

f(4) = 5

Therefore, average rate of change of the function =

                                                                                    = 5