Assume That at Very Low Tax Rates the Government Collects

Assume that at very low tax rates the government collects a very modest amount of revenue from personal taxes. As the rate is raised the government collects more revenue but at a decreasing rate. Suppose furthermore that at some tax rate of let's say 30% the total amount of tax revenue is maximized. Any tax rate above that leads to a reduction in tax revenue collected. From this information and that contained in the table below graph the relationship between the tax rate and tax revenue with the tax rate on the horizontal axis and tax revenue on the vertical axis.