document.write( "Question 859077: Help please, show all work. \r
\n" ); document.write( "\n" ); document.write( "Find the axis of symmetry and the vertex of the graph of y=3x^2+12x+8.\r
\n" ); document.write( "\n" ); document.write( "thank you. \n" ); document.write( "

Algebra.Com's Answer #517538 by josgarithmetic(39617) $\"\"$ $\"About$

You can put this solution on YOUR website!
You could try completing the square and adjust the equation into standard form.\r
\n" ); document.write( "\n" ); document.write( "This would start as
\n" ); document.write( " $\"y=3%28x%5E2%2B4x%2B8%2F3%29\"$ , and the term to add and subtract is 4.
\n" ); document.write( " $\"y=3%28x%5E2%2B4x%2B4%2B8%2F3-4%29\"$
\n" ); document.write( " $\"y=3%28%28x-2%29%5E2%2B8%2F3-12%2F3%29\"$
\n" ); document.write( " $\"y=3%28%28x-2%29%5E2-4%2F3%29\"$
\n" ); document.write( " $\"highlight%28y=3%28x-2%29%5E2-4%29\"$ ------ and read what you need directly from this.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Standard Form for Parabola, $\"y=a%28x-h%29%5E2%2Bk\"$
\n" ); document.write( "Vertex (h,k)
\n" ); document.write( "Symmetry Axis, x=h \n" ); document.write( "

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