document.write( "Question 1173813: The point P(x, y) is on the unit circle in Quadrant IV.
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Algebra.Com's Answer #799133 by Edwin McCravy(20064)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "Instead of doing your problem for you, I'll do one exactly like it,\r\n" );
document.write( "step-by-step that you can use as a model to go by:\r\n" );
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\n" ); document.write( "The point P(x, y) is on the unit circle in Quadrant IV.
\n" ); document.write( "If x = sqrt(65)/9, find y.
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document.write( "\"x%5E2\"\"%22%22%2B%22%22\"\"y%5E2\"\"%22%22=%22%22\"\"1\"\r\n" );
document.write( "\"%28sqrt%2865%29%2F9%29%5E2\"\"%22%22%2B%22%22\"\"y%5E2\"\"%22%22=%22%22\"\"1\"\r\n" );
document.write( "\"65%2F81\"\"%22%22%2B%22%22\"\"y%5E2\"\"%22%22=%22%22\"\"1\"\r\n" );
document.write( "\"65\"\"%22%22%2B%22%22\"\"81y%5E2\"\"%22%22=%22%22\"\"81\"\r\n" );
document.write( "\"81y%5E2\"\"%22%22=%22%22\"\"81\"\"%22%22-%22%22\"\"65\"\r\n" );
document.write( "\"81y%5E2\"\"%22%22=%22%22\"\"16\"\r\n" );
document.write( "\"y%5E2\"\"%22%22=%22%22\"\"16%2F81\"\r\n" );
document.write( "\"y\"\"%22%22=%22%22\"\"%22%22+%2B-+sqrt%2816%2F81%29\"\r\n" );
document.write( "\"y\"\"%22%22=%22%22\"\"%22%22+%2B-+sqrt%2816%29%2Fsqrt%2881%29\"\r\n" );
document.write( "\"y\"\"%22%22=%22%22\"\"%22%22+%2B-+4%2F9\"\r\n" );
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document.write( "Since all points in Quadrant IV are (+,-), the \r\n" );
document.write( "y-coordinate is \"-4%2F9\"\r\n" );
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document.write( "Now do yours the exact same way.\r\n" );
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document.write( "Edwin
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