please solve questions in an easy to understand way

Unit 5 Activity 7 = Unit Summative MHF4U - DCE eLearning Instructions s Complete the following questions in a separate document using the \"Equation Editor\" in word or any other mathematical software or by hand on a separate sheet of paper. s You must show all your work (full solutions); you will also be graded on: o using correct mathematical symbols, labels, units and convention o clarity in explanation and justification in reporting * Once completed, save your document,/scan/take photos and upload into the dropbox for USA7 - Assignment Part A (22 marks) 1) Given the function f(x)= % , answer the following questions. (3 marks) = a) Determine the average rate of change on the interval -4