document.write( "Question 386132: Graph the equation \r
\n" ); document.write( "\n" ); document.write( "2x^2 + 2y^2 -16x + 4y - 38 = 0 \n" ); document.write( "

Algebra.Com's Answer #273009 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!


\n" );
document.write( "Hi,
\n" );
document.write( " Standard Form of an Equation of a Circle is  
\n" );
document.write( "where Pt(h,k) is the center.     
\n" );
document.write( "Graphing
\n" );
document.write( "2x^2 + 2y^2 -16x + 4y - 38 = 0   factoring out the 2
\n" );
document.write( " x^2 + y^2 -8x + 2y - 19 = 0   
\n" );
document.write( " x^2 -8x + y^2 + 2y - 19 = 0    Compleitn both squares
\n" );
document.write( " (x-4)^2 -16 + (y +1)^2 - 1 -19 = 0
\n" );
document.write( "  (x-4)^2 + (y +1)^2 = 36
\n" );
document.write( "Center is (4,-1) radius = 6
\n" );
document.write( " \n" );
document.write( "

\n" );