Adjusted Gross Income Problem: Consider a software system that computes income tax based on adjusted gross income (AGI) and number of dependents according to following rules If AGI is between 25000 and 50000 and number of dependents less than 3 tax due is 22% of AGI otherwise, tax rate is 20% If AGI is between 50001 and 100000 and number of dependents less than 3 tax due is 27% of AGI otherwise tax rate is 25% If AGI is between 100001 and 1 million and number of dependents less than 3 tax is 36 % of AGI, otherwise tax rate is 33% This software does not calculate tax for people over 1 million and tax will not be deducted for families with AGI less than 25000. Suppose you need to test this application using equivalent partitions. a) Identify equivalent classes for income and number of dependents b) Develop test cases for weak normal equivalent partition testing? c) Draw a graph that shows strong normal and strong robust test cases (like the one discussed during the lecture). How many test cases are needed if you were to use strong normal? How many test cases are needed if you were to use strong robust