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Circle P has a radius of 8 units with center P at (2, 1). Which equation defines circle P?
 one year ago
 one year ago
Circle P has a radius of 8 units with center P at (2, 1). Which equation defines circle P?
 one year ago
 one year ago

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lgbasalloteBest ResponseYou've already chosen the best response.1
equation of a circle is \[(xh)^2 + (yk)^2 = r^2\] where (h,k) is the center and r is the raidus does that help
 one year ago

computergeek123Best ResponseYou've already chosen the best response.0
(x + 2)2 + (y – 1)2 = 64 (x – 2)2 + (y + 1)2 = 64 (x – 2)2 + (y + 1)2 = 8 (x + 2)2 + (y – 1)2 = 8
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.1
so does your flaunting of the choices mean you didnt get what i said?
 one year ago

computergeek123Best ResponseYou've already chosen the best response.0
Yeah. Haha because none of them matched the  +  pattern
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.1
^does that make sense?
 one year ago

computergeek123Best ResponseYou've already chosen the best response.0
Yes I know that.
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.1
so what's your problem then?
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.1
maybe if i show you a demo...
 one year ago

computergeek123Best ResponseYou've already chosen the best response.0
I have to choose which of those defines P.
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.1
the center of a circle is (3, 4) and radius is 5 he equation would be \[(x 3)^2 + (y  4)^2 = 5^2\] \[\implies (x3)^2 + (y+4)^2 = 25\] got the idea now?
 one year ago

computergeek123Best ResponseYou've already chosen the best response.0
OH I think so, thanks :)
 one year ago

efremmcBest ResponseYou've already chosen the best response.0
The solution is: (x2)^2+(y+1)^2=64
 one year ago
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