document.write( "Question 973811: Please Help!!!!
\n" ); document.write( "x-y=1
\n" ); document.write( "x^2+y^2=5
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\n" ); document.write( "The point (x y) is in the 3rd quadrant of the xy- plane and satisfies the equations above. What is value of y? \n" ); document.write( "
Algebra.Com's Answer #595861 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
x-y=1
\n" ); document.write( "x^2+y^2=5
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\n" ); document.write( "x = y+1
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\n" ); document.write( "Substitute for \"x\" and solve for \"y\"::
\n" ); document.write( "(y+1)^2 + y^2 = 5
\n" ); document.write( "2y^2 + 2y + 1 = 5
\n" ); document.write( "2y^2 + 2y - 4 = 0
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\n" ); document.write( "y^2 + y - 2 = 0
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\n" ); document.write( "Factor:
\n" ); document.write( "(y+2)(y-1) = 0
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\n" ); document.write( "y = 1 or y = -2
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\n" ); document.write( "Solve for \"x\"::
\n" ); document.write( "x = y+1
\n" ); document.write( "If y = 1, x = 2
\n" ); document.write( "If y = -2, x = -1
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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