MatchMyCL October 2021 with quadratics

MatchMyCL for October 2021 inspired by: https://teacher.desmos.com/activitybuilder/custom/614d1c676413a69b62f22011 Axis of Symmetry with feedback for reflection across student input. Allows both vertical and horizontal student inputs. Part of the following activity: Quazy about Quadratics

By Stein Schreiber