document.write( "Question 885384: The sum of the distance from a point P to (8,0) and (-8,0) is 20. If the abscissa of P is 6, Find the ordinate? \n" ); document.write( "
Algebra.Com's Answer #535125 by josgarithmetic(39618)\"\" \"About 
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Ellipse Description.
\n" ); document.write( "2a=20 and \"c=8\".
\n" ); document.write( "\"a=20%2F2=10\".\r
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\n" ); document.write( "\n" ); document.write( "Using the typical labeling for an ellipse, \"b%5E2%2Bc%5E2=a%5E2\",
\n" ); document.write( "\"b%5E2=a%5E2-c%5E2\"
\n" ); document.write( "\"b%5E2=10%5E2-8%5E2\"
\n" ); document.write( "\"b%5E2=100-64\"
\n" ); document.write( "\"b%5E2=36\".\r
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\n" ); document.write( "\n" ); document.write( "You can plug-in everything into the standard form equation and solve for whichever coordinate you need:
\n" ); document.write( "\"highlight%28x%5E2%2F100%2By%5E2%2F36=1%29\"
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