Posted by **Kejo ** on Tuesday, June 28, 2011 at 12:59pm.

I really need assistance!! I am to write an equation so that I can graph it. I do not understand how to graph OR write the equation for: x^2-y^2=16 for a tangent and normal line??? I keep coming up with the wrong answers...and the problem is I was not given any points of (x,y) to use..Can anyone help????

Thanks a million!!

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