Question 397055: I need to find the foci, vertices, directrix, axis for 4(x-1)^2+y^2=1
Answer by robertb(5830)   (Show Source):
You can put this solution on YOUR website!  <==> 
The conic section is an ellipse.
The center of the ellipse is (1,0).
The major axis x = 1, the minor axis y = 0.
Here,  , and  , and so  , or
 , or  , or c =  .
Therefore the foci are (1, ) and (1,  ).
The vertices are (1, 1) and (1, -1). The co-vertices are (1/2, 0) and (3/2, 0).
The eccentricity is 
==> The directrices are  and 
|
|
|
