8. [2/3 Points] MTH 117 Assignment 3 - MTH 117, section 02, Fall 2021 | WebAssign DETAILS PREVIOUS ANSWERS LARPCALCLIM4 1.5.033. webassign.net + You are given the dollar value of a product in 2016 and the | Quizlet MY NOTES PRACTICE ANOTHE Determine the open intervals on which the function is increasing, decreasing, or constant. (Enter your answers using interval notation. If an answer does not exist, enter DNE.) f(x) = - 1 x increasing DNE decreasing X constant DNE Need Help? Submit Answer y 5 4 3 2 WebAssign Plot 1 X -5-4-3-2-1 2 3 4 3 4 5 -1 -2- -3 -4 -5\ Read It 9. [3/3 Points] DETAILS PREVIOUS ANSWERS LARPCALCLIM4 1.5.034. MY NOTES PRACTICE ANOTHER