document.write( "Question 193531This question is from textbook algebra and trigonometry structure and method book 2
\n" ); document.write( ": Find the vertex, focus, directrix, and axis of symmetry of each parabola.
\n" ); document.write( "x^2+8y+4x-4=0
\n" ); document.write( "We have been using the formulas y-k=a(x-h)^2 and x-h=a(y-k)^2 I don't understand which to use here, even after completing the square and its confusing because I don't know which is which. please explain and be specific. thank you. \n" ); document.write( "

Algebra.Com's Answer #145271 by jim_thompson5910(35256) $\"\"$ $\"About$

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