document.write( "Question 206969: f(x)=x^2+4x+1. What is h, the x-coordinate of the vertex of the parabola. I need to show my work. Thanks. \n" ); document.write( "
Algebra.Com's Answer #156508 by checkley77(12844)\"\" \"About 
You can put this solution on YOUR website!
f(x)=x^2+4x+1
\n" ); document.write( "\"+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2Cx%5E2+%2B4x+%2B1%29+\" (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, x^2 +4x +1).
\n" ); document.write( "X vertex =(-2)
\n" ); document.write( "
\n" );