Parabola Opening Up or Down Worksheet

This GeoGebra worksheet is designed for exploring parabolas that open upwards or downwards. It demonstrates the graph and properties of parabolas, including standard form equations, vertex, axis of symmetry, opening direction, and range. Key GeoGebra commands/objects used in the construction are: text1 (text object), a (parameter controlling width), b (parameter controlling horizontal stretch), p (focus position), c (vertex y-coordinate), f (function expression), A (point object). Suitable for high school students learning about parabolas and their applications.