Graphs of inequalities – Higher tier. Inequalities look like equations, but they have an inequality symbol instead of an equals sign. This indicates the variable which can be any letter, / can ...

40 Years Of Income Inequality In America, In Graphs. October 2, 2014 10:46 AM ET. By . ... but the census data we're using in this graph make it hard to track incomes for the top 1 percent.