document.write( "Question 456656: Given the equation of the circle (x – 9)² + y² = 484, the center of the circle is located at __________, and its radius has a length of __________ units. \n" ); document.write( "
Algebra.Com's Answer #313370 by Edwin McCravy(20060)\"\" \"About 
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document.write( "The general statement for all circles is:\r\n" );
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document.write( "Given the equation of the circle (x – h)² + (y-k)² = r², \r\n" );
document.write( "the center of the circle is located at (h,k), and its \r\n" );
document.write( "radius has a length of r units.\r\n" );
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document.write( "You should learn that.\r\n" );
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document.write( "Your equation is \r\n" );
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document.write( "(x – 9)² + y² = 484\r\n" );
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document.write( "Since the square root of 484 is 22 and since y can\r\n" );
document.write( "be written as (y - 0), your equation can be written as\r\n" );
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document.write( "(x – 9)² + (y - 0)² = 22²\r\n" );
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document.write( "Now if we compare that with\r\n" );
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document.write( "(x – h)² + (y - k)² = r²\r\n" );
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document.write( "we see that h = 9, k = 0, and r = 22.\r\n" );
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document.write( "So we make those substitutions in the general statement \r\n" );
document.write( "about all circles, we get\r\n" );
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document.write( "Given the equation of the circle (x – 9)² + (y - 0)² = 22², \r\n" );
document.write( "the center of the circle is located at (9,0), and its \r\n" );
document.write( "radius has a length of 22 units. \r\n" );
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document.write( "Edwin
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