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)

Question

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)

loser66 · Answer

What is the formula of a shifted ellipse?

anonymous · Answer

$$\frac{ (x-h)^2 }{ a^2 } + \frac{ (y-k)^2 }{ b^2  } = 1$$?

loser66 · Answer

Yup!!
how to find the major vertices from foci and co-vertices?

loser66 · Answer

c^2=......

anonymous · Answer

c^2 = a^2 - b^2

loser66 · Answer

Yes, you have foci c, and b, how to find a^2?

anonymous · Answer

what what is c? is it -3?

anonymous · Answer

sorry you kind of lost me...

loser66 · Answer

no no, I am just asking about the formula, not number yet.

anonymous · Answer

oh 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 · Answer

ok, now, draw out the given points.

anonymous · Answer

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loser66 · Answer

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