User Name Remember Me? Password

 Algebra Pre-Algebra and Basic Algebra Math Forum

 August 28th, 2017, 05:43 PM #1 Member   Joined: May 2015 From: U.S.A. Posts: 45 Thanks: 0 Find a circle's equation After giving the equation for circles ( $\displaystyle (x - h)^{2} + (y - k)^{2} = r^{2}$ , the question says: "Find the equation of a circle with radius of 3 and center (-2, 5)." At first I solved for x and y individually by respectively substituting the other with 0 (i.e. solving for y: $\displaystyle (0 + 2)^2 + (y - 5)^2 = 9$) But is it just asking for this: $\displaystyle (x + 2)^2 + (y - 5)^2 = 9$ ? It's on a review sheet with many many different topics, so this is the only of its kind I can look at; no other examples of this sort. August 28th, 2017, 07:10 PM #2 Senior Member   Joined: Sep 2015 From: USA Posts: 2,375 Thanks: 1276 you just have to plug in $h=-2$ $k=5$ $r=3$ Thanks from Rexan August 28th, 2017, 07:52 PM #3 Member   Joined: May 2015 From: U.S.A. Posts: 45 Thanks: 0 Okay, thank you! I'll respond to your reply on my other question probably tomorrow. (Changing a proportion by adding more) I just had a bunch of birthday cake and I'm getting sleepy, so my brain's not processing things properly.  Tags circle, equation, find 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 shiseonji Algebra 6 March 21st, 2014 06:46 PM shiseonji Algebra 3 February 8th, 2014 12:54 PM soulrain Algebra 8 January 7th, 2012 02:48 PM therenaissancedan Algebra 8 August 11th, 2010 03:06 PM aschenbr.rach Applied Math 1 March 8th, 2010 08:56 AM

 Contact - Home - Forums - Cryptocurrency Forum - Top      