Which graph type would be best suited for showing the upper quartile ages of teachers in a high school?

A Box plot would be the best graph type to use to show the upper quartile ages of teachers in a high school. A box plot is a standardized way of displaying the distribution of data based on quartiles. It shows the median, upper, and lower quartiles, as well as any outliers. This would allow the viewer to quickly and easily see the spread of ages among the teachers, as well as the median age.