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Sunshine447
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@ParthKohli @Hero

Sunshine447
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@ganeshie8

Sunshine447
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I think it's the first one

Sunshine447
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is it the first choice? I'm just double checking

ganeshie8
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check again :)

Sunshine447
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why is it the last one?

Sunshine447
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wouldnt it be 2^2=4 so its the first one? Dont you have to add not subtract?

ganeshie8
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general form of equation is :
(xh)^2 + (yk)^2 = r^2
can you tell whats the center (h, k) and radus r, from the figure ?

ganeshie8
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yeah radius you got it correct !!

Sunshine447
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yes, the center is 0,1 and the radius is 2

Sunshine447
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wait.... so which one is it?

Sunshine447
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1st or last?

ganeshie8
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center = (h, k) = (0, 1)
(xh)^2 + (yk)^2 = r^2

ganeshie8
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plug in h and k values

ganeshie8
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(x0)^2 + (y1)^2 = 2^2
x^2 + (y1)^2 = 4

Sunshine447
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so the first one?

ganeshie8
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does that help/make sense ?