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This circle passes through the points $(-1, 2)$, $(3,0)$ and $(9,0)$. The center of the circle is at $(h,k)$. What is the value of $h+k$?

 Mar 18, 2021
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The center of the circle is (13/2,12), so h + k = 13/2 + 12 = 37/2.

 Mar 19, 2021

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