document.write( "Question 416655: What is the axis of symmetry of the parabola with the equation x – 4 = 1/4(y + 1)2 \n" ); document.write( "
Algebra.Com's Answer #292366 by Gogonati(855)\"\" \"About 
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We write this equation in the form; (y+1)^2=4(x-4) and conclude that;
\n" ); document.write( "The vertex is (4,-1) and directrix (4c=4; c=1)is x=-1.
\n" ); document.write( "The axis of symmetry is perpendicular to directrix with equation; y=-1.\r
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