Axis of Symmetry and Coefficients of a Quadratic

This example demonstrates how the axis of symmetry of a quadratic function shifts as the quadratic, linear, and constant coefficients change. It covers core concepts such as the standard form, vertex form, and the axis‑of‑symmetry formula x = -b/(2a). Construction highlights: the Intersect command finds the intersection of the parabola with its symmetry axis, using objects a, b, c, d, e, point A, function f, text2, auxiliary line g, and text1. Suitable for high‑school algebra (functions chapter) and for middle‑school enrichment or self‑study.