QC. Find the average rate of change of The function on the specified interval (1) ( x ) = 2x -8 on 3, all Given ?( x ) = x-1 and 86) = 2x-5, find the following DI) Pig ( 2) ) D 2) ( 909 ) (1 ) QE Given { (x ) =- 27+2 and 9 ( x ) =4 find E 2) 9 - f