How Close to the Midpoint?

This example demonstrates how to compare the difficulty of identifying midpoints of horizontal and non-horizontal line segments. Core math concepts include midpoint, coordinate geometry, linear functions, and similarity transformation. Construction highlights the use of GeoGebra commands like Segment and Midpoint, with objects A, B, C, D, functions f, g, etc. Interactive demonstration via sliders and buttons is employed. Suitable for high school students learning coordinate geometry and geometric transformations.