anonymous
  • anonymous
What are the foci of the following graph? how do i find that?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
Loser66
  • Loser66
a=? b=? c^2=a^2-b^2
Loser66
  • Loser66
|dw:1438653300551:dw|

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anonymous
  • anonymous
The foic lie on the line called the major. This ellipse major is on the x axis. The equation of this ellipse is \( \huge \frac{x^2}{36} +\frac{y^2}{4} = 1 \) The foci is (c, 0) and (-c,0) \( \huge c= \sqrt{36-4} \) Can you tell us what c equals?
anonymous
  • anonymous
If you are wondering where I got 36, I got it from starting at (0,0) and counting to my right to the end where the circle meets the x axis, which is 6. Then I \( 6^2 = 36 \)
anonymous
  • anonymous
You do the same for the y too
anonymous
  • anonymous
What does c = ??
anonymous
  • anonymous
4 sqrt 2?
anonymous
  • anonymous
Yes correct!!! so your foci are at |dw:1438686871701:dw|

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