What is the center of the circle represented by this equation? x2 + (y + 9)2 = 25

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23-05-2018
Mathematics

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What is the center of the circle represented by this equation? x2 + (y + 9)2 = 25

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sqdancefan sqdancefan · Answer 1 · 2018-05-23T22:22:48+02:00

sqdancefan sqdancefan

23-05-2018

Comparing the given equation to the standard form for the equation of a circle,
(x -h)² + (y -k)² = r²
we find that
h = 0
k = -9
r = 5

The circle is centered at (h, k) = (0, -9). It has radius 5.

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