document.write( "Question 481381: Identify the center and the radius of the circle (x – 4)2 + (y + 3)2 = 81.\r
\n" ); document.write( "\n" ); document.write( "and\r
\n" ); document.write( "\n" ); document.write( "Identify the center of the ellipse x^2/3+(y+1)^2/5=1\r
\n" ); document.write( "\n" ); document.write( "thank you!
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Algebra.Com's Answer #329636 by lwsshak3(11628)\"\" \"About 
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Identify the center and the radius of the circle (x – 4)2 + (y + 3)2 = 81.
\n" ); document.write( "and Identify the center of the ellipse x^2/3+(y+1)^2/5=1.
\n" ); document.write( "**
\n" ); document.write( "Standard form for equation of a circle: (x-h)^2+(y-k)^2=r^2, (h,k) being the (x,y) coordinates
\n" ); document.write( "of the center.
\n" ); document.write( "For given equation of circle:
\n" ); document.write( "(x–4)^2+(y+3)^2=81
\n" ); document.write( "center: (4,-3)
\n" ); document.write( "radius: √81=9
\n" ); document.write( "..
\n" ); document.write( "Standard form for equation of an ellipse with vertical major axis:
\n" ); document.write( "(x-h)^2/b^2+(y-k)^2/a^2=1, a>b, (h,k) being the (x,y) coordinates of the center.
\n" ); document.write( "For given equation of ellipse:
\n" ); document.write( "x^2/3+(y+1)^2/5=1
\n" ); document.write( "center: (0,-1)
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