SOLUTION: Which point is a focus of the graph of x^2/64 + y^2/36 =1 A.(10,0) B.(0,-10) C.(-2sqrt7,0) D.(0,-2sqrt7) E.(0,-7sqrt2) Thank you!

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Question 181826: Which point is a focus of the graph of
x^2/64 + y^2/36 =1
A.(10,0) B.(0,-10) C.(-2sqrt7,0) D.(0,-2sqrt7) E.(0,-7sqrt2)
Thank you!

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

:
c=10
:
foci is at ((0+10),0) and at ((0-10),0)
:
so at (10,0) and (-10,0)

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