SOLUTION: 1. Find focus & directrix (c,0) & x=-c? 2. foci of ellipse are on center (0,0) and y-axis. Draw ellipse, length of major axis is 20 and length of minor axis is 6. How would I

Question 949780: 1. Find focus & directrix
(c,0) & x=-c?

2. foci of ellipse are on center (0,0) and y-axis. Draw ellipse, length of major axis is 20 and length of minor axis is 6. How would I get the needed information to be able to graph this?
Thank you
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!
#2 .
You can pick any point for center on the y axis you want.
Taking standard form,

The center IS ON the y-axis, so s=0.

If you are trying to say that the center IS THE ORIGIN, (0,0), the you have
.
This should be understandable enough for you to draw the graph.

#1:

Simplify this, which is according to the definition for a parabola:

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