document.write( "Question 871154: I need to find the vertex of the parabola formed by the following quadratic function: $\"+y+=+-2x2+%2B+6x+%96+1+\"$ \n" ); document.write( "

Algebra.Com's Answer #525354 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
Convert to vertex form by completing the square.
\n" ); document.write( " $\"y=-2x%5E2%2B6x-1\"$
\n" ); document.write( " $\"y=-2%28x%5E2-3x%29-1\"$
\n" ); document.write( " $\"y=-2%28x%5E2-3x%2B9%2F4%29-1%2B2%289%2F4%29\"$
\n" ); document.write( " $\"y=-2%28x-3%2F2%29%5E2-4%2F4%2B18%2F4\"$
\n" ); document.write( " $\"y=-2%28x-3%2F2%29%5E2%2B14%2F4\"$
\n" ); document.write( " $\"y=-2%28x-3%2F2%29%5E2%2B7%2F2\"$
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( "(3/2,7/2) \n" ); document.write( "

\n" );