While on a business trip to Kensington, Vivian treated her co-workers to a meal that cost $70. Vivian knew that when the bill came, she would need to pay Kensington sales tax of
10% and would want to leave a 20% tip on the original $70. Including tax and tip, how much did Vivian's meal cost?
$_

  b.   the average rate of change of f(x) is less than the average rate of change of g(x).

step-by-step explanation:

since the length of the interval is the same in each case, we only need to compare the change in y-value to see which is greater.

so the change in y-value for function f is (6 )) = 9.

the table tells us

so the change in y-value for function g is (31 -1) = 30.

the change in y-value of f(x) on the interval is less than the change in y-value of g(x) on the same interval, so the average rate of change of f(x) is less than the average rate of change of g(x).