Problem 520

What are the vertices of the following graph?

520

 

Solution:-

 

This is an ellipse with a center at (-1, 0), foci (-1 – \frac{3} , 0) and (-1 + \frac{3}  , 0), vertices (-3, 0) and (1, 0) and co-vertices (-1, -1) and (-1, 1).

 

So the vertices is (-3, 0) and (1, 0).

 

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