How to return x-value when y=0 from a graph

Question

How can I print out the x-value(the bottom) of the graph displayed?
Or how can I return the x-value in a specific range from the graph?

https://code.sololearn.com/c8azc062cVLE/?ref=app

Answer 1

I hope this helps you:
https://code.sololearn.com/c1Ge33XpHmXE/?ref=app