The Audio Trace feature of Desmos allows a user to explore a graph using sound rather than or in addition to sight. Although primarily intended for individuals who are blind or visually impaired, it can be useful for anyone who might use sound to discover how one or more curves are graphed. To experience a basic summary of an expression on a particular graph press the key command ALT + S on a Chromebook or Windows computer (or OPTION + S on a Mac). Similarly, a user can experience an audio description of the graph axes (including whether the X and Y axes are displayed, their ranges and labels if available, the existence of grid lines, etc) by pressing ALT + G on a Chromebook or Windows computer (or OPTION + G on a Mac). Audio trace mode can be activated on a Chromebook or Windows computer by pressing ALT + T (or OPTION + T on a Mac). To learn more, explore this article titled Audio Trace for Expressions with a Graph by the Desmos accessibility team.