document.write( "Question 929903: Find the equation of a parabola with a vertex of (9,-6) and a point of (2,5)
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Algebra.Com's Answer #564570 by ewatrrr(24785)\"\" \"About 
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the vertex form of a Parabola opening up(a>0) or down(a<0),
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\n" ); document.write( "where(h,k) is the vertex and x = h is the Line of Symmetry ,
\n" ); document.write( "the focus is (h,k + p), With Directrix y = (k - p), a = 1/(4p)
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\n" ); document.write( "parabola with a vertex of (9,-6) and a point of (2,5)
\n" ); document.write( "y = a(x-9)^2 - 6
\n" ); document.write( "5 = a(-7)^2 - 6
\n" ); document.write( "11/49 = a
\n" ); document.write( "y = (11/49)(x-9)^2 - 6\r
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