document.write( "Question 1209794: (x+4)^2/9+(y+3)^2 /4 =1\r
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Algebra.Com's Answer #850497 by greenestamps(13200)\"\" \"About 
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\n" ); document.write( "\"%28x%2B4%29%5E2%2F9%2B%28y%2B3%29%5E2+%2F4+=1\"

\n" ); document.write( "The equation has x^2 and y^2 terms and no xy term, so the equation is of an ellipse whose axes are horizontal and vertical.

\n" ); document.write( "The general equations are...

\n" ); document.write( "(1) major axis horizontal: \"%28x-h%29%5E2%2Fa%5E2%2B%28y-k%29%5E2%2Fb%5E2=1\"

\n" ); document.write( "(2) major axis vertictal: \"%28x-h%29%5E2%2Fb%5E2%2B%28y-k%29%5E2%2Fa%5E2=1\"

\n" ); document.write( "In both forms, the center of the ellipse is (h,k), a is the semi-major axis, and b is the semi-minor axis.

\n" ); document.write( "Compare the given equation to those two general forms to find that the ellipse has a horizontal major axis and has...
\n" ); document.write( "center (-4,-3)
\n" ); document.write( "semi-major axis 3
\n" ); document.write( "semi-minor axis 2

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