Number Line Rule #7: Exploring Point Relationships on the Real Line

This GeoGebra example accompanies Exeter Math 1 number line problems and demonstrates the “What’s My Number Line Rule #7?” phenomenon by placing two points, A and B, on a real number line. It supports inquiry into how point positions correspond to numerical values and algebraic rules. Core mathematical concepts include real numbers, functions, straight lines, arithmetic operations, and coordinate geometry. Construction is minimal: the GeoGebra Point command is used to create objects A and B, whose locations on the number line serve as the basis for rule discovery and pattern generalization. Suitable for middle school and high school students (Exeter Math 1 level), teachers, and self-learners seeking an interactive, visual introduction to number-line reasoning, function behavior, and geometric construction.