This is a great way to review student understanding of the graphs of linear inequalities. There are 7 different BINGO cards with 24 pictures of graphs of 2-variable inequalities. The teacher reads the equation of a linear inequality and the stduents have to find the matching graph on their BINGO card. Students go for 5 in a row in any direction and I usually let them go for 5 in a row more than one time to keep the play going. The students absolutely LOVE this!