document.write( "Question 600314: 13xx+13yy=49. I need to decide if it is an ellipse, parabola, hyperbola, or a circle. Once I decide I need to put into the right equation and be able to graph it.
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Algebra.Com's Answer #379236 by Edwin McCravy(20059) $\"\"$ $\"About$

You can put this solution on YOUR website!
13xx+13yy=49. I need to decide if it is an ellipse, parabola, hyperbola, or a circle. Once I decide I need to put into the right equation and be able to graph it.
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document.write( "13·x² + 13·y² = 49\r\n" );
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document.write( "It's a circle because x² and y² have the same coefficient when they\r\n" );
document.write( "are on the same side of the equation.\r\n" );
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document.write( "Divide through by 13\r\n" );
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document.write( " +  = \r\n" );
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document.write( " +  = \r\n" );
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document.write( "x² + y² =   in the form x² + y² = r²\r\n" );
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document.write( "That's a circle with center at the origin and radius = \r\n" );
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document.write( "That's a weird value for a radius.  It's like 1.941450687\r\n" );
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document.write( "But here's the graph:\r\n" );
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document.write( "Edwin

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