During a planetary exploration mission, Emek and Luna monitored a rover sending signals back to the base station. As the rover moved farther across the planet's surface, the communication delay changed, and the team recorded the distance and delay as coordinate pairs. Emek and Luna plotted the points on a digital graph and checked whether they formed a linear pattern. They noticed that the delay increased at a steady rate, allowing them to create a model for future signal times. Using the graph, they predicted when communication might become difficult and adjusted the rover's route to keep the connection strong. The successful test helped the exploration team continue the mission safely.