SOLUTION: Please help me with this. The directions say to Find is foci. Today in class we learned that the foci meant the same term as focus. I have been struggling with this problem.

Question 192405This question is from textbook
: Please help me with this.
The directions say to Find is foci.
Today in class we learned that the foci meant the same term as focus.
I have been struggling with this problem. We are dealing with graphing and working with conic sections: ellipses and hyperbolas.
This what I have tried so far.

I tried dividing everything by one therefore I would get

a=9
b=1
c=
However it just isn't working out so I do not know if I have making a small mistake. This question is from textbook

Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!

:
c=+ c=-
:
remember and
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