Question 981057: x^2/9+(y+3)^2/25=1
whats its center, length of major axis, length of minor axis,foci, and vetexes?
Answer by MathLover1(20850)   (Show Source):
You can put this solution on YOUR website!  .....if you compare it to the standard formula of an ellipse , , you see that:
so, the center is at ( , )
you also see that we have vertical major axis
 => and 
 => and 
so,
semi-major axis length is
semi-minor axis length is
find foci:
first we need 
 and 
so, foci will be at (, ) and (, )
(,  ) => (, )
and
(,  ) => (, )
The vertices are at the intersection of the major axis and the ellipse.
vertices are at (, ) and (, )
eccentricity 
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