document.write( "Question 1010718: identify the conic section if it is a parabola give the vertex if it is a circle give the center and radius if it is a ellipse or a hyperbola give the center and foci
\n" ); document.write( "5x^2-5y^2+40x-20y+35=0
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Algebra.Com's Answer #626228 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "\"5x%5E2-5y%5E2%2B40x-20y%2B35=0\".........all terms divide by \"5\"\r
\n" ); document.write( "\n" ); document.write( "\"x%5E2%2B8x-y%5E2-4y%2B7=0\"\r
\n" ); document.write( "\n" ); document.write( "\"%28x%5E2%2B8x%29-%28y%5E2%2B4y%29%2B7=0\"...complete squares\r
\n" ); document.write( "\n" ); document.write( "\"%28x%5E2%2B8x%2Bb%5E2%29-b%5E2-%28y%5E2%2B4y%2Bb%5E2%29-b%5E2%2B7=0\"\r
\n" ); document.write( "\n" ); document.write( "\"%28x%5E2%2B8x%2B4%5E2%29-4%5E2-%28y%5E2%2B4y%2B2%5E2%29-2%5E2%2B7=0\"\r
\n" ); document.write( "\n" ); document.write( "\"%28x%2B4%29%5E2-16-%28y%2B2%29%5E2-4%2B7=0\"\r
\n" ); document.write( "\n" ); document.write( "\"%28x%2B4%29%5E2-%28y%2B2%29%5E2-20%2B7=0\"\r
\n" ); document.write( "\n" ); document.write( "\"%28x%2B4%29%5E2-%28y%2B2%29%5E2-13=0\"\r
\n" ); document.write( "\n" ); document.write( "\"%28x%2B4%29%5E2-%28y%2B2%29%5E2=13\"=> both sides divide by \"13\"\r
\n" ); document.write( "\n" ); document.write( "\"%28x%2B4%29%5E2%2F13-%28y%2B2%29%5E2%2F13=1\"=> so, we have a hyperbola with \"h=-4\",\"k=-2\"\r
\n" ); document.write( "\n" ); document.write( "the center is at (\"-4\",\"-2\") \r
\n" ); document.write( "\n" ); document.write( "semimajor axis length |\"a=+sqrt%285%29\"~~\"a=2.24\"
\n" ); document.write( "semiminor axis length | \"b=sqrt%285%29\"~~\"b=2.24\"\r
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\n" ); document.write( "\n" ); document.write( "foci is fixed distance \"c\" from the center
\n" ); document.write( "\"c%5E2+=+b%5E2+%2B+a%5E2\"=>\"c%5E2+=+%28sqrt%285%29%29%5E2+%2B+%28sqrt%285%29%29%5E2\"=>\"c%5E2+=+5+%2B+5\"
\n" ); document.write( "\"c=sqrt%2810%29\"\r
\n" ); document.write( "\n" ); document.write( "so, foci is at:
\n" ); document.write( "(\"-4-sqrt%2810%29\",\"+-2\") and (\"-4%2Bsqrt%2810%29\",\"+-2\")~~(\"-7.2\", \"-2\") and (\"-0.8\", \"-2\")\r
\n" ); document.write( "\n" ); document.write( "vertices | (\"-4-sqrt%285%29\",\"+-2\") and (\"-4%2Bsqrt%285%29\", \"-2\")~~(\"-6.2\", \"-2\") and (\"-1.8\", \"-2\")\r
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