document.write( "Question 750315: Please help me with the following problem:\r
\n" ); document.write( "\n" ); document.write( "Q/. Point (a,b) lies in the third quadrant on the graph of the equation y = 1/x. Find a and b given that the distance from poin (a,b) to the origin is \"sqrt%28257%29%2F4\".\r
\n" ); document.write( "\n" ); document.write( "A/. y = 1/x ; b = 1/a ; a = 1/b
\n" ); document.write( "\"sqrt%28a%5E2+%2B+b%5E2%29+=+sqrt%28257%29%2F4\"
\n" ); document.write( "\"sqrt%28a%5E2+%2B+%281%2Fa%29%5E2%29+=+sqrt%28257%29%2F4\"\r
\n" ); document.write( "\n" ); document.write( "I'm stuck at solving for a....I tried to rearrange it as \"sqrt%28%28a%5E4+%2B+1%29%2Fa%5E2%29%29+=+sqrt%28257%29%2F4\" but I don't know if this brings me any closer to the answer..\r
\n" ); document.write( "\n" ); document.write( "The textbook answer is a = -1/4, -4. Thanks..
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Algebra.Com's Answer #456536 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
Point (a,b) lies in the third quadrant on the graph of the equation y = 1/x. Find a and b given that the distance from poin (a,b) to the origin is \"sqrt%28257%29%2F4\"
\n" ); document.write( "------------------
\n" ); document.write( "y = 1/x is a hyperbola centered at the Origin
\n" ); document.write( "The point is on a circle about the Origin
\n" ); document.write( "\"x%5E2+%2B+y%5E2+=+257%2F16\" is the circle
\n" ); document.write( "Find the intersections.
\n" ); document.write( "\"x%5E2+%2B+y%5E2+=+257%2F16\"
\n" ); document.write( "Sub 1/y for x
\n" ); document.write( "\"y%5E2+%2B+1%2Fy%5E2+=+257%2F16\"
\n" ); document.write( "\"16y%5E4+%2B+16+=+257y%5E2\"
\n" ); document.write( "\"16y%5E4+-+257y%5E2+%2B+16+=+0\"
\n" ); document.write( "\"%2816y%5E2+-+1%29%2A%28y%5E2+-+16%29+=+0\"
\n" ); document.write( "\"y%5E2+=+16\"
\n" ); document.write( "y = -4 (for Q3)
\n" ); document.write( "x = 1/y = -1/4
\n" ); document.write( "--> (-1/4,-4)
\n" ); document.write( "y = -1/4
\n" ); document.write( "x = -4
\n" ); document.write( "--> (-4,-1/4)
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