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shi3aishanhoxh
shi3aishanhoxh shi3aishanhoxh
  • 05-05-2016
  • Mathematics
Answered

The center of a circle is at (7, –3) and it has a radius of 9. What is the equation of the circle?



(x – 7)2 + (y + 3)2 = 3



(x + 7)2 + (y – 3)2 = 3



(x + 7)2 + (y – 3)2 = 81



(x – 7)2 + (y + 3)2 = 81

Verified Answer :

meerkat18
meerkat18 meerkat18
  • 12-05-2016

Given:
center (7,-3)
radius = 9

Equation of the circle:
(x-h)² + (y-k)² = r²
(x-7)² + (y-(-3)² = 9²
(x-7)² + (y+3)² = 81  Last option.

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