"To graph the data" means to visually represent the information or numbers using a graph or chart. It helps in better understanding and analyzing the data by presenting it in a visual form. Full definition
Additionally, you can have the students graph the data that represents their class as a whole group based on the data from 1st to 4th quarter. (edutopia.org)
I also graph all data I'm working with and find that I can pick up patterns that don't show up in simple statistical analyses. (wattsupwiththat.com)
Preparing for algebra, students graph data and evaluate expressions. (nhaschools.com)