Question: Clear Button

I am continuing work with buttons and I wanted to be able to clear graphs with a button.  I understand how to communicate with the button because of other posts by members that have been very helpful.    I want the button to be able to delete the graphs that I have drawn in Plot0.


Is there a way this can happen? Or do my students just need to type a new equation in to the mathematical expression box to plot new functions?


Any help is appeciated. I could not find anything online that I could get to work. I have included the document



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