Posted by tiona on Thursday, November 10, 2011 at 1:06am.
rearrange terms to complete the squares:
x^2 + (y^2 + 8y + 16) = 65 + 16
x^2 + (y+4)^2 = 9^2
center: (0,-4)
radius: 9
y-intercepts: (0,-13) and (0,5)
x-intercepts: (-√65,0) and (√65,0)
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