Write a Proof

Hey! I would like assistance in writing a proof (step by step) to show the distance between a vertex and a co-vertex is the SAME as the distance between the center and a focus for hyperbolas. In simpler terms, why is x=y? I would really appreciate an illustration to go with the answer of some sort, and will pay however much is needed for the best possible answer.
Good Luck!

  • Can you increase it :) I will show a proof ! Thanks

  • Ok!

  • Sorry it looks like I cant add to a question's total bounty if it has already been accepted to be answered.

  • thank you so much!!

  • Welcome, it would be great if you accept the answer if you are satisfied. Thanks

  • Oops! My bad first time using the site

  • thank you so much

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