document.write( "Question 444459: find the center and foci of the hyperbola.\r
\n" ); document.write( "\n" ); document.write( "(y-3)2 - (x+7)2=1
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Algebra.Com's Answer #306577 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
 
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\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\"
\n" ); document.write( "where Pt(h,k) is a center with vertices 'b' units up and down from center.
\n" ); document.write( " \"%28y-3%29%5E2%2F4+-+%28x%2B7%29%5E2%2F12+=+1\" Center(-7,3)
\n" ); document.write( " Foci distance from center = \"sqrt%284%2B12%29+=+sqrt%2816%29+=+4\"
\n" ); document.write( " Foci are (-7,7) and (-7,-1)
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