The relationship between the tax rate and income which is relevant to progressive tax is shown by? by Sunday | Mar 29 | Economics JAMB | 0 comments A. curve X B. curve Y C. curve Z D. curve X and Z Correct Answer: Option B = curve Y Users Also Read These:Which of the following policies qualifies the holder…The tax whose rate increase as the level of income…Progressive tax structure is designed to?The relationship between tax rate and income which…According to the income approach to national income…