The following are the ages (years) of 5 people in a room: 20, 13, 14, 21, 18
A person enters the room.
The mean age of the 6 people is now 22.
What is the age of the person who entered the room

The means age of other people who entered the room will be 44

  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).