document.write( "Question 564980: The problem is 9y^2+18y=25x^2+216\r
\n" ); document.write( "\n" ); document.write( "I have tried over and over to solve this and I keep getting odd numbers. I do not know how to get it into standard form correctly or get a, b, or c to graph it. Help!!\r
\n" ); document.write( "\n" ); document.write( "Thank you,
\n" ); document.write( "Kaite
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Algebra.Com's Answer #365552 by issacodegard(60)\"\" \"About 
You can put this solution on YOUR website!
Hi, the equation of a hyperbola is
\n" ); document.write( "\"%28X%5E2%29%2F%28a%5E2%29-%28Y%5E2%29%2F%28b%5E2%29=1\"
\n" ); document.write( "So, consider the left hand side of the equation given in the problem. We can complete the square by adding 9 to both sides. This gives us:
\n" ); document.write( "\"9%28y%2B1%29%5E2=25x%5E2%2B225\"
\n" ); document.write( "Rearranging, and letting X=x, Y=y+1, we get:
\n" ); document.write( "\"%28X%5E2%29%2F%28225%2F25%29-%28Y%5E2%29%2F%28225%2F9%29=1\"
\n" ); document.write( "This is the equation of a hyperbola for say z and w:
\n" ); document.write( "\"%28z%5E2%29%2F%28225%2F25%29-%28w%5E2%29%2F%28225%2F9%29=1\"
\n" ); document.write( "Shifted one unit down (we would need to take w=y+1 to get the equation given in X,Y)
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