Mrfootballman97
Please help! Medal will be given!



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Mrfootballman97
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write an equation of each circle described:

Shiv99
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simply get the radius using distance formula and then u have centre and radius u'll get eqn of circle

Mrfootballman97
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So the radius is \[\sqrt{10}\]

SweetsAndEverything
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@Mrfootballman97 Use this formula:
\[(xa)^{2} + (yb)^{2} = r ^{2}\]

goformit100
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(x−a)2+(y−b)2=r2

Shiv99
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no duh it \[\sqrt{26}\]

Mrfootballman97
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so the final answer is? Im a little confused right now. If someone just tells me the answer ill be able to see how you did it.

Shiv99
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hey that not to find radius use\[\sqrt{(x_{1}x_{2})^2+(y_{1}y_{2})^2}\]

Shiv99
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@Mrfootballman97 use above formula to get radius and then equation of circle answer would be \[x^2+(y4)^2=26\]

Mrfootballman97
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thank you!