Illustration of an xy grid/graph with grid lines shown. It is the Cartesian coordinate system with increments from -10 To 10 on each axis. Axes and increments are not labeled.
Florida Center for Instructional Technology Exploring Florida: Social Studies Resources for Students and Teachers (Tampa, FL: University of South Florida, 2009)
3003×3000, 364.5 KiB
1024×1022, 86.1 KiB
640×639, 49.9 KiB
320×319, 23.0 KiB