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| Question 1119190:  An ellipse has a vertex at (0, -5), a co-vertex at (–3, 0), and a center at the origin. Which is the equation of the ellipse in standard form?
 Answer by greenestamps(13209)
      (Show Source): 
You can put this solution on YOUR website! 
 Center at the origin and one vertex (0,-5) means the other vertex is (0,5).
 
 Center at the origin and one co-vertex at (-3,0) means the other co-vertex is at (3,0).
 
 So the major axis is in the y direction, and the length of the semi-major axis is 5; the minor axis is in the x direction, and the length of the semi-minor axis is 3.
 
 The standard form for an ellipse with center (0,0), semi-major axis 5 in the y direction, and semi-minor axis 3 in the x direction, is
 
 
  
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