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Posted by **Heather** on Sunday, December 9, 2012 at 3:18am.

r=10; (h,k)=(8,-6)

- college algebra--need help please!! -
**Henry**, Tuesday, December 11, 2012 at 5:05pmGiven: C(h,k) = C(8,-6), r = 10.

STD Form: (x-h)^2 + (y-k)^2 = r^2.

(x-8)^2 + (y+6)^2 = 100.

x^2-16x+64 + y^2+12y+36-100 = 0.

X^2 + Y^2 -16x + 12y - 64 = 0

Gen. Form: X^2 + Y^2 Ax + By + C = 0.

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