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:If a country's national income increased from N1000…The distance between two points in phase on a…A tax system in which the rich pays a higher…If the death rate of a country is 52% and the growth…According to the income approach to national income…