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 September 4th, 2016, 11:09 AM #1 Newbie   Joined: Sep 2016 From: alaska Posts: 16 Thanks: 0 Find the center and the radius r of the circle I have no idea about to even go about doing this. Does anyone mind giving me a hand and explaining it a little? Find the center and the radius r of the circle given by the following equation. (x + 7)2 + (y − 2)2 = 25 September 4th, 2016, 11:38 AM   #2
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Quote:
 Originally Posted by MBI I have no idea about to even go about doing this. Does anyone mind giving me a hand and explaining it a little? Find the center and the radius r of the circle given by the following equation. (x + 7)2 + (y − 2)2 = 25
circle equation ...

$(x-h)^2 + (y-k)^2 = r^2$

center at coordinates $(h,k)$, radius = $r$

so, in your equation, (x + 7)^2 + (y − 2)^2 = 25, ...

what is $h$ ?

what is $k$ ?

what is $r$ ? Tags center, circle, find, radius Thread Tools Show Printable Version Email this Page Display Modes Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Similar Threads Thread Thread Starter Forum Replies Last Post SlayedByMath Geometry 5 August 7th, 2016 10:20 PM joelphilippage Geometry 3 September 17th, 2014 03:53 PM daveyf Probability and Statistics 8 April 25th, 2011 07:32 AM thyrgle Algebra 4 May 16th, 2010 04:10 PM rune2402 Algebra 4 February 27th, 2008 05:21 PM

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