Question 670149
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
 y = (x-3)^2
I. A parabola opening Upward
II. V(3,0) 
III.  Line of symmetry is x = 3
{{{drawing(300,300,   -6, 6, -6, 6,blue(line(3,6,3,-6))  ,    grid(1),
circle(3, 0,0.3),
graph( 300, 300, -6, 6, -6, 6,0,(x-3)^2))}}}
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