Name is not defined, again😥 Help my, please

Question

https://code.sololearn.com/cIoixieAR5e1/?ref=app

Answer 1

yhat exists in a local scope when in the function. You need to declare another yhat and y in a global scope

Answer 2

inside function: local scope
outside function: global scope

Answer 3

many thanks😊👍👍👍