document.write( "Question 111547: what are 2 functions for the following equation:\r
\n" ); document.write( "\n" ); document.write( "((x+1)/10)^2 + (y/5)^2 = 1 \n" ); document.write( "

Algebra.Com's Answer #81508 by Edwin McCravy(20065) $\"\"$ $\"About$

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what are 2 functions for the following equation:
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document.write( "This is the equation of this ellipse:\r\n" );
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document.write( "An ellipse is NOT a function because it does not pass the\r\n" );
document.write( "vertical line test.\r\n" );
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document.write( "However the upper half of the ellipse is a function:\r\n" );
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document.write( "Also the lower half of the ellipse is a function:\r\n" );
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document.write( "To find these two functions we solve the equation for y:\r\n" );
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document.write( "Multiply through by LCD = 100\r\n" );
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document.write( " = ą\r\n" );
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document.write( "When we use the positive sign we get the\r\n" );
document.write( "functional equation\r\n" );
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document.write( " = \r\n" );
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document.write( "which is the equation of the top half of\r\n" );
document.write( "the ellipse.\r\n" );
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document.write( "When we use the negative sign we get the\r\n" );
document.write( "functional equation\r\n" );
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document.write( " = \r\n" );
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document.write( "which is the equation of the bottom half of\r\n" );
document.write( "the ellipse.\r\n" );
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document.write( "Edwin

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