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Write an equation of the circle with center , 9−7 and radius 12 .
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Write an equation of the circle with center , 9−7 and radius 12 .

User Ahmed Ibrahim
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1 Answer

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The equation of a circle is:

(x - h)² + (y - k)² = radius²
where (h, k) is the center.

Assuming your center is (9, 7) your equation is:
(x - 9)² + (y - 7)² = 144

Assuming your center is (9, - 7) your equation is:
(x - 9)² + (y + 7)² = 144
User Simon Duff
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