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Activity for students to graph points, particular to avoid getting confused between (2,-2), (2,2), (-2,-2), and (-2,2). One handout has a list of codes as lettered points; the other has an image that goes from one point to another. Moving from one point to another spells out a message. Editable Microsoft Word document and a scanned (PDF format) image of line segments on graphing paper. With my scanned (hand-written) answer keys (PDF format).