Action Button CL Help

I am building this activity, and on slide 11, I want to Hide the “Check Your Work Button” until they put something on the graph.
When they click the button, I want to add an URL to show them what their graph should look like

Activity: Basketball Star • Activity Builder by Desmos
Link I want to provide them in the Note: Graphing Calculator

I know I can Hide the Button and put the Link in a Note, but that’s as far as I get.

You could hide it, but I think maybe better to disable it:
disabled: dotplot.sketch.strokeCount=0

Instead of taking them out of the activity through a link, why not have another graph component that is hidden until the button is pressed?
hidden: button1.pressCount=0

This was perfect! Thank You so much!