document.write( "Question 182769: Find the vertex, the line of symmetry, the maximum or minimum value of the quadratic function f(x) = -2x^2+2x+1 \n" ); document.write( "

Algebra.Com's Answer #137228 by Mathtut(3670) $\"\"$ $\"About$

You can put this solution on YOUR website!
f(x) = -2x^2+2x+1
\n" ); document.write( ":
\n" ); document.write( " $\"f%28x%29=-2%28x%5E2-2x%29%2B1\"$
\n" ); document.write( ":
\n" ); document.write( " $\"f%28x%29=-2%28x%5E2-x%2B%281%2F4%29%29%2B1%2B%281%2F2%29\"$
\n" ); document.write( ":
\n" ); document.write( " $\"f%28x%29=-2%28x-%281%2F2%29%29%5E2%2B%283%2F2%29\"$
\n" ); document.write( ":
\n" ); document.write( "vertex is at (1/2,3/2)
\n" ); document.write( ":
\n" ); document.write( "line if symmetry is at x=1/2
\n" ); document.write( ":
\n" ); document.write( "maximum is at y=3/2
\n" ); document.write( ":
\n" ); document.write( " $\"graph%28300%2C300%2C-10%2C10%2C-10%2C10%2C-2x%5E2%2B2x%2B1%29\"$ \n" ); document.write( "

\n" );