document.write( "Question 748094: what is center and endpoints of major and minor axis and foci\r
\n" ); document.write( "\n" ); document.write( "2x^2 + 4y^2 + 4x - 12y = 5
\n" ); document.write( "

Algebra.Com's Answer #455326 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
what is center and endpoints of major and minor axis and foci
\n" ); document.write( "2x^2 + 4y^2 + 4x - 12y = 5
\n" ); document.write( "-----
\n" ); document.write( "2x^2 + 4x + 4y^2 - 12y = 5
\n" ); document.write( "Complete the Square:
\n" ); document.write( "2(x^2+2x+1) + 4(y^2-3y + (9/4)) = 5 + 2 + 9
\n" ); document.write( "-----
\n" ); document.write( "2(x+1)^2 + 4(y-(3/2))^2 = 16
\n" ); document.write( "----
\n" ); document.write( "(x+1)^2/8 + (y-(3/2))^2/4 = 1
\n" ); document.write( "------
\n" ); document.write( "center: (1,3/2)
\n" ); document.write( "----
\n" ); document.write( "semi-major axis: sqrt(8) = 2sqrt(2)
\n" ); document.write( "semi-minor axis: sqrt(4) = 2
\n" ); document.write( "----
\n" ); document.write( "major axis end-points: (1+2sqrt(2),3/2) and (1-2sqrt(2),3/2)
\n" ); document.write( "minor axis end-points: (1,(3/2)+2) and (1,(3/2)-2)
\n" ); document.write( "-----
\n" ); document.write( "a^2 = b^2+c^2
\n" ); document.write( "c = sqrt[a^2-b^2] = sqrt[8+4] = 2sqrt(3)
\n" ); document.write( "-----
\n" ); document.write( "foci: (1+2sqrt(3),3/2) and (1-2sqrt(3),3/2)
\n" ); document.write( "======================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "----------------------
\n" ); document.write( "
\n" );