document.write( "Question 1187756: Find the equation of parabola with the given condition:
\n" ); document.write( "Axis vertical and passing through (0,0)(1,0) and (5,-20)\r
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\n" ); document.write( "Use: (x-h)^2=-4a(y-k)\r
\n" ); document.write( "\n" ); document.write( "Can you also show me the solution? Ty \n" ); document.write( "
Algebra.Com's Answer #818767 by Edwin McCravy(20060)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "\"h%5E2\"\"%22%22=%22%22\"\"%281-h%29%5E2\"  <--since both equal 4ak\r\n" );
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document.write( "\"h%5E2\"\"%22%22=%22%22\"\"1-2h%2Bh%5E2\" <--subtract h2 from both sides\r\n" );
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document.write( "\"0\"\"%22%22=%22%22\"\"1-2h\"\r\n" );
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document.write( "\"2h\"\"%22%22=%22%22\"\"1\"\r\n" );
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document.write( "\"h\"\"%22%22=%22%22\"\"1%2F2\"   \r\n" );
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document.write( "\"h%5E2\"\"%22%22=%22%22\"\"1%2F4\"\r\n" );
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document.write( "\"4ak\"\"%22%22=%22%22\"\"1%2F4\"  <--since h2 equals 4ak\r\n" );
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document.write( "\"%285-h%29%5E2\"\"%22%22=%22%22\"\"80a%2B4ak\"\r\n" );
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document.write( "\"%285-1%2F2%29%5E2\"\"%22%22=%22%22\"\"80a%2B1%2F4\"\r\n" );
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document.write( "\"%284%261%2F2%29%5E2\"\"%22%22=%22%22\"\"80a%2B1%2F4\"\r\n" );
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document.write( "\"%289%2F2%29%5E2\"\"%22%22=%22%22\"\"80a%2B1%2F4\"  \r\n" );
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document.write( "\"81%2F4\"\"%22%22=%22%22\"\"80a%2B1%2F4\"  <--multiply through by 4\r\n" );
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document.write( "\"81\"\"%22%22=%22%22\"\"320a%2B1\"\r\n" );
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document.write( "\"80\"\"%22%22=%22%22\"\"320a\"\r\n" );
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document.write( "\"80%2F320\"\"%22%22=%22%22\"\"a\"\r\n" );
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document.write( "\"1%2F4\"\"%22%22=%22%22\"\"a\"\r\n" );
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document.write( "\"4ak\"\"%22%22=%22%22\"\"1%2F4\"\r\n" );
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document.write( "\"4%281%2F4%29k\"\"%22%22=%22%22\"\"1%2F4\"\r\n" );
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document.write( "\"k\"\"%22%22=%22%22\"\"1%2F4\"\r\n" );
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document.write( "So the equation of the parabola is\r\n" );
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document.write( "\"%28x-h%29%5E2\"\"%22%22=%22%22\"\"-4a%28y-k%29\"\r\n" );
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document.write( "\"%28x-1%2F2%29%5E2\"\"%22%22=%22%22\"\"-4%281%2F4%29%28y-1%2F4%29%29\"\r\n" );
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document.write( "You simply further.\r\n" );
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document.write( "Edwin
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