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anonymous
 5 years ago
the center of the circle defined by 2x^(2)+2y^(2)+4x12y30=0 is
a) (1,3)
b) (2,6)
c) (2,6)
d) (1,3)
anonymous
 5 years ago
the center of the circle defined by 2x^(2)+2y^(2)+4x12y30=0 is a) (1,3) b) (2,6) c) (2,6) d) (1,3)

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I'm guessing I divide everything by 2 to begin with, but what happens to the squares?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0You just have to turn everything into a more usable form : (xa)^2(yb)^2=radius^2, where a and b are the coordinates of the circle's center :) Hope that helped

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0(xa)^2+(yb)^2=r^2 is the form.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0So mainly you should try to complete the squares.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Do you know how to "complete the squares" for this problem?
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