Question 631188:  What is the equation of the ellipse with foci (0, 4), (0, -4) and vertices (0, 8), (0, -8)? 
 Answer by lwsshak3(11628)      (Show Source): 
You can  put this solution on YOUR website! What is the equation of the ellipse with foci (0, 4), (0, -4) and vertices (0, 8), (0, -8)? 
This is an ellipse with vertical major axis. 
Its standard form of equation:  
 , a>b, (h,k)=(x,y) coordinates of the center. 
For given ellipse: 
center: (0,0) 
a=8 
a^2=64 
.. 
c=4 
c^2=16 
.. 
c^2=a^2-b^2 
b^2=a^2-c^2=64-16=48 
b≈√48≈6.93 
.. 
equation of given ellipse: 
  
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