Consider the function [math]y=\frac{1}{x}[/math]. [br]Represent the domain and range of the function on two parallel axes.[br]The segments joining each point of the domain and the corresponding point of the range create the envelope of an ellipse.[br][br]Use sliders [i][color=#a64d79]distance[/color][/i] and [i][math]O'[/math][/i] to change the distance between the axes and the relative position of the origins of the two axes, and explore the envelope.