document.write( "Question 148393: graph the circle whose equation is x squared + y squared = 64. what is its radius? what do the equatons x squared + y squared = 1 and x squared + y squared = k all have in common? how do they differ? \n" ); document.write( "

Algebra.Com's Answer #108770 by Alan3354(69443) $\"\"$ $\"About$

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1. graph the circle whose equation is x squared + y squared = 64. what is its radius?
\n" ); document.write( "2. what do the equations x squared + y squared = 1 and x squared + y squared = k all have in common? how do they differ?
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\n" ); document.write( "1. I don't think I can do graphs here, but
\n" ); document.write( " $\"x%5E2+%2B+y%5E2+=+8%5E2\"$ is a circle about the origin of radius 8.
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\n" ); document.write( "2. Since there are no other terms, their centers are the origin.
\n" ); document.write( "Their radii are different, $\"sqrt%281%29\"$ and $\"sqrt%28k%29\"$
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