document.write( "Question 618493: How do you find the center, vertices, and the foci of the ellipse?\r
\n" ); document.write( "\n" ); document.write( "(y-5)^2/25+(x+1)^2/16=1\r
\n" ); document.write( "\n" ); document.write( "Or\r
\n" ); document.write( "\n" ); document.write( "36x^2+9y^2+72x-36y+36=0
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Algebra.Com's Answer #388946 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 an Ellipse is \"%28x-h%29%5E2%2Fa%5E2+%2B+%28y-k%29%5E2%2Fb%5E2+=+1+\" where Pt(h,k) is the center. (a positioned to correspond with major axis)
\n" ); document.write( " a and b are the respective vertices distances from center and ±\"sqrt%28a%5E2-b%5E2%29\"are the foci distances from center: a > b
\n" ); document.write( "\"%28y-5%29%5E2%2F25%2B%28x%2B1%29%5E2%2F16=1\"
\n" ); document.write( "C(-1,5) Vertices( -5,5)(3,5) and (-1,10)(-1,0)
\n" ); document.write( "± \"sqrt%2825-16%29\" = ± 3 F( 2,5) &(-4,5)\r
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\n" ); document.write( "\n" ); document.write( "See below descriptions of various conics
\n" ); document.write( "Standard Form of an Equation of a Circle is \"%28x-h%29%5E2+%2B+%28y-k%29%5E2+=+r%5E2\"
\n" ); document.write( "where Pt(h,k) is the center and r is the radius\r
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\n" ); document.write( "\n" ); document.write( " Standard Form of an Equation of an Ellipse is \"%28x-h%29%5E2%2Fa%5E2+%2B+%28y-k%29%5E2%2Fb%5E2+=+1+\" where Pt(h,k) is the center. (a positioned to correspond with major axis)
\n" ); document.write( " a and b are the respective vertices distances from center and ±\"sqrt%28a%5E2-b%5E2%29\"are the foci distances from center: a > b\r
\n" ); document.write( "\n" ); document.write( "Standard Form of an Equation of an Hyperbola opening right and left is:
\n" ); document.write( " \"%28x-h%29%5E2%2Fa%5E2+-+%28y-k%29%5E2%2Fb%5E2+=+1\" where Pt(h,k) is a center with vertices 'a' units right and left of center.\r
\n" ); document.write( "\n" ); document.write( "Standard Form of an Equation of an Hyperbola opening up and down is:
\n" ); document.write( " \"%28y-k%29%5E2%2Fb%5E2+-+%28x-h%29%5E2%2Fa%5E2+=+1\" where Pt(h,k) is a center with vertices 'b' units up and down from center.\r
\n" ); document.write( "\n" ); document.write( "the vertex form of a parabola opening up or down, \"y=a%28x-h%29%5E2+%2Bk\" where(h,k) is the vertex.
\n" ); document.write( "The standard form is \"%28x+-h%29%5E2+=+4p%28y+-k%29\", where the focus is (h,k + p)\r
\n" ); document.write( "\n" ); document.write( "the vertex form of a parabola opening right or left, \"x=a%28y-k%29%5E2+%2Bh\" where(h,k) is the vertex.
\n" ); document.write( "The standard form is \"%28y+-k%29%5E2+=+4p%28x+-h%29\", where the focus is (h +p,k ) \n" ); document.write( "
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