document.write( "Question 1072507: Hello! I need help with the following question.
\n" ); document.write( "Graph the following parabola:
\n" ); document.write( "(x-3)^2=8(y+5). I only know how to find the vertex ( 3,5) and p which is 2. But I do not know how to find the focus and the directrix.
\n" ); document.write( "Thank you! \n" ); document.write( "

Algebra.Com's Answer #687431 by MathTherapy(10552) $\"\"$ $\"About$

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\n" ); document.write( "Hello! I need help with the following question.
\n" ); document.write( "Graph the following parabola:
\n" ); document.write( "(x-3)^2=8(y+5). I only know how to find the vertex ( 3,5) and p which is 2. But I do not know how to find the focus and the directrix.
\n" ); document.write( "Thank you!
\n" ); document.write( "

First of all, you have to determine whether the parabola has a vertical or horizontal axis.
\n" );
document.write( "This one has a vertical axis, so you compare the given equation to the standard-form equation, as follows:
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document.write( " ----- Given equation
\n" );
document.write( " ----- Standard-form equation of a parabola with a vertical axis, with (h, k) being the vertex
\n" );
document.write( "You have the vertex, or (h, k) as (3, 5), but the vertex, or 
\n" );
document.write( "As seen, 4p = 8, so  
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document.write( "Focus:      
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document.write( "Directrix:  \n" );
document.write( "

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