anonymous
  • anonymous
I am learning about ellipses and I want to know what are the foci and vertices. Are they always horizontal or vertical?
Mathematics
  • Stacey Warren - Expert brainly.com
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katieb
  • katieb
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Empty
  • Empty
The foci and vertices aren't always horizontal or vertical. They're labelled in this picture pretty well: http://sites.csn.edu/istewart/mathweb/Math127/ellipses/images/ellipse1.gif and you can see that sometimes the ellipse can even be rotated like this! http://www.sensorsmag.com/files/sensor/nodes/2009/6475/Figure9.gif So it doesn't even have to be either horizontal or vertical at all.
anonymous
  • anonymous
How do you know which side are the vertices and foci?
anonymous
  • anonymous
Are they the longer ends?

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Empty
  • Empty
Yeah, the vertices and foci are on the longer ends, and they call that line they are on the Major Axis.
anonymous
  • anonymous
Ok thank you.

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