Using the individual tax rate schedule , perform the following: and $2.1 million. b. Plot the average tax rates (measured on the y-ixis) against the pretax income levels (measured on the x-axis) What generaluafion can be made concerting ate relationship between these variables? and $2.1 million (Round dollars to the nearest cent and round percentages to one decimal place) Data table (Click the icon here in order to copy the contents of the data table below into a spreadsheet.) TABLE 1.2: Federal Income Tax Rates and Brackets for Individual Returns (2018)