Question 258508
f(x)=2x^2+4x+5
{{{ graph( 300, 200, -6, 5, -10, 10, 2x^2 +4x +5) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, 2x^2 +4x +5).
Vertex (-1,3)