Have you noticed the option to add an image to a Desmos graph?
Editing a graph page recently I noticed you can add an image…
Clearly I had to experiment with this facility, so remembering the beautiful dance moves poster I thought I’d see how accurate it is!
The modulus function looks pretty good – as does the circle (though it really should not be labelled just x2+y2)
Anyway – upload an image – save your page and challenge your students to fit a graph!
Remembering a holiday in Barcelona – I thought I would add the graph of cosh x to this photo.. Select the image to see the Desmos graph page.
An update – thank you @Desmos – love this!
Note the use of the drop down menu in each section.
And for a little more mathematical dancing – can you dance the Bubble Sort?