Question 663707
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
y= -2x^2 + x    ||completing the Square to put into vertex form
y = -2(x-1/4)^2 +1/8   V(.25,1/8)
the vertex form of a Parabola opening up(a>0) or down(a<0), {{{y=a(x-h)^2 +k}}} 
where(h,k) is the vertex  and  x = h  is the Line of Symmetry
{{{drawing(300,300,   -6, 6, -6, 6,  blue(line(.25,6,.25,-6))  , grid(1),
circle(.25, 1/8,0.3),
graph( 300, 300, -6, 6, -6, 6,0,-2x^2+x))}}}

Donations on my website are appreciated.  Thanks.  ewatrrr
http://math-is-magical.weebly.com/index.html