cases for the formula but I don t understand how to solve

Last updated: 7/2/2023

cases for the formula but I don t understand how to solve for 8x 2 and I think that s where I messed up in my work I thought that after integrating I was supposed to plug in 3 and 1 but maybe that was wrong Can anyone provide some tips pointers on how to solve this please Thanks 1 0 1 Points DETAILS O PREVIOUS ANSWERS SCALCET9 6 5 001 MI Find the average value fave of the function f on the given interval f x 3x 8x 1 3