Question 633828
  <pre><font face = "Tohoma" size = 3 color = "i{{sqrt(5)ndigo"><b> 
Hi,
 y = x^2 - 4x + 9     |parabola, Pt(0,9) on the graph
 y = (x-2)^2 - 4 + 9  |completing Square to put in vertex form
 y = (x-2)^2 + 5      | V(2,5), 1>0 Opens Upward.   Line of symmetry x = 2
Sketch
{{{drawing(300,300,   -6, 6, -6, 20,  blue(line(2,20,2,-6))  , grid(1),
circle(2, 5,0.3),
circle(0,9,0.3),
graph( 300, 300, -6, 6, -6, 20,0,x^2 - 4x + 9 ))}}}