document.write( "Question 1100547: Can I have some help with this one too please? What is the equation of the parabola, with vertex at (2,-4) and directrix y=-6\r
\n" ); document.write( "\n" ); document.write( "A.(x+2)^2=8(y+4)
\n" ); document.write( "B.(y+4)^2=8(x-2)
\n" ); document.write( "C.(y+6)^2=-8(x+2)
\n" ); document.write( "D.(x-2)^2=8(y+4)
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Algebra.Com's Answer #715088 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
vertex at (2,-4)
\n" ); document.write( "(x-h)^2=4p(y-k)
\n" ); document.write( "(x-2)^2=4p(y+4)
\n" ); document.write( "Without even calculating p the only option that matches is D.(x-2)^2=8(y+4)
\n" ); document.write( "and yes p=2
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