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Ellipses and Parabolas: Eccentricity

Suppose we have an ellipse with a horizontal major axis and it has a fixed directrix of  and corresponding focus at . Depending on the eccentricity, we will end up with a different ellipse. Adjust the slider for the eccentricity and see what happens to the ellipse. Answer the questions below. Note: You can zoom in and out by scrolling on the mouse.

As , what happens to the ellipse?

Where does the other focus  go? And the center of the ellipse?

What happens as you decrease