document.write( "Question 216636: find the coordinates of the points of intersection for the graphs of
\n" ); document.write( "x^2 + 2y^2 = 33 and x^2 + y^2 = 2x + 19\r
\n" ); document.write( "\n" ); document.write( "a)(5,2),(-1,4)
\n" ); document.write( "b)(5,4),(-1,2)
\n" ); document.write( "c)(5,+-2),(-1,+-4)
\n" ); document.write( "d)graphs do not intersect
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Algebra.Com's Answer #163568 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
I'll give you a hint to get started\r
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\n" ); document.write( "\n" ); document.write( "First, note that there are \"x%5E2\" and \"y%5E2\" terms.\r
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\n" ); document.write( "\n" ); document.write( "So take the second equation \"x%5E2%2By%5E2=2x%2B19\" and solve for either \"x%5E2\" or \"y%5E2\". I'm going to choose \"y%5E2\". So solve for \"y%5E2\" to get \"y%5E2=-x%5E2%2B2x%2B19\"\r
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\n" ); document.write( "\n" ); document.write( "Now simply plug in \"y%5E2=-x%5E2%2B2x%2B19\" into \"x%5E2%2B2y%5E2=33\" to get\r
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\n" ); document.write( "\n" ); document.write( "\"x%5E2%2B2%28-x%5E2%2B2x%2B19%29=33\"\r
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\n" ); document.write( "\n" ); document.write( "Now just solve the equation above to find 'x' and then use the value(s) of 'x' to find the corresponding value(s) of 'y'.
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