What is the rule: 1, 5, 25, 125,

Sorry guys but as you have a small brain

Consider the functions below. function 1 function 2 function 3 select the statement which is true about the functions over the interval [1, 2] a b function 3 has the highest average rate of change function 2 and function 3 have the same average rate of change. function and function 3 have the same average rate of change function 2 has the lowest average rate of change d.

Can you me find the missing length. i attached an image.