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anonymous
 one year ago
Hey, I need help with one question about ellipses. I have to go so a simple step by step for the situation and then with my numbers to plug in would be good. Please help quickly... The question is:
Write the equation of an ellipse with center (3,2); covertex (8,2) and focus (3,10)
anonymous
 one year ago
Hey, I need help with one question about ellipses. I have to go so a simple step by step for the situation and then with my numbers to plug in would be good. Please help quickly... The question is: Write the equation of an ellipse with center (3,2); covertex (8,2) and focus (3,10)

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Loser66
 one year ago
Best ResponseYou've already chosen the best response.4What is the formula of a shifted ellipse?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[\frac{ (xh)^2 }{ a^2 } + \frac{ (yk)^2 }{ b^2 } = 1\]?

Loser66
 one year ago
Best ResponseYou've already chosen the best response.4Yup!! how to find the major vertices from foci and covertices?

Loser66
 one year ago
Best ResponseYou've already chosen the best response.4Yes, you have foci c, and b, how to find a^2?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0what what is c? is it 3?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0sorry you kind of lost me...

Loser66
 one year ago
Best ResponseYou've already chosen the best response.4no no, I am just asking about the formula, not number yet.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh ok. I think to find a^2 you turn it around so it is: a^2 = b^2 = c^2? or is it a completely different formula

Loser66
 one year ago
Best ResponseYou've already chosen the best response.4ok, now, draw out the given points.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1439814717542:dw

Loser66
 one year ago
Best ResponseYou've already chosen the best response.4yes, so from the center, go to the right 5 units, what is the other covertex?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh lol 12 sorry i wasn't thinking

Loser66
 one year ago
Best ResponseYou've already chosen the best response.4ok, that is c, and b is 5 hence a^2=?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0a^2 = 5^2 + 12^2 a^2 = 25 + 144 a^2 = 169

Loser66
 one year ago
Best ResponseYou've already chosen the best response.4plug them into the standard equation.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I get this: \[\frac{ (x+3)^2 }{ 25 } + \frac{ (y2)^2 }{ 169 } = 1\]
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