document.write( "Question 440664: find the foci of the ellipse with the equation:\r
\n" ); document.write( "\n" ); document.write( "x^2\16 + y^2/36=1 \n" ); document.write( "
Algebra.Com's Answer #304415 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
 
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document.write( "Hi
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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+\"
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document.write( "where Pt(h,k) is the center and a and b  are the respective vertices distances from center.
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document.write( "find the foci of the ellipse with the equation:
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document.write( "\"x%5E2%2F16+%2B+y%5E2%2F36=1\"   | Center(0,0)
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document.write( " a = 4 and b = 6  f = sqrt(36-16) = sqrt(20) = ±2sqrt(5)
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document.write( "ellipse with foci (0, ±2sqrt(5))
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