Help me pleaseee , i did not learn this and i do not underu

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.

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

Solve x+3y=6 and 4x-6y=6 by elimination . show work !