document.write( "Question 1131216: Convert the polar equation to rectangular coordinates. (Use variables x and y as needed.)
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Algebra.Com's Answer #747865 by ikleyn(52814) $\"\"$ $\"About$

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\n" ); document.write( "Convert the polar equation to rectangular coordinates. (Use variables x and y as needed.)
\n" ); document.write( "r = −3
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document.write( "Traditionally, in polar coordinates, the variable \" r \" is the distance from the origin in a coordinate plane.\r\n" );
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document.write( "In polar coordinates, the radius r should be non-negative to describe non-empty set of points.\r\n" );
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document.write( "In your case, with r negative  r= -3, it describes EMPTY set of points.\r\n" );
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\n" ); document.write( "\n" ); document.write( "The answer by @MathLover1 is incorrect.\r
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