document.write( "Question 132351: y=-(x-1)2 -4
\n" ); document.write( "find p, axis of symmetry, veritces, foci, directix for this parabola. Thank-you! \n" ); document.write( "

Algebra.Com's Answer #96713 by stanbon(75887) $\"\"$ $\"About$

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y=-(x-1)2 -4
\n" ); document.write( "find p, axis of symmetry, vertices, foci, directrix for this parabola. Thank-you!
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\n" ); document.write( "Rewrite as (x-1)^2 = (y+4)\r
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\n" ); document.write( "4p=1; p = 1/4
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\n" ); document.write( "Axis of symmetry: x = 1
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\n" ); document.write( "Vertex: (1,-4)
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\n" ); document.write( "focus: (1,-4+1/4) or (1 , -15/4)
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\n" ); document.write( "directrix: y = -4-(1/4) = -17/4
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\n" ); document.write( " $\"graph%28400%2C300%2C-10%2C10%2C-10%2C10%2C%28x-1%29%5E2-4%29\"$
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "

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