Question 899871
 <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi
y = x^2-3x+7 = (x-3/2)^2 - 9/4 + 7 = (x-3/2)^2 + 19/4
{{{drawing(300,300,   -20,20,-20,20, grid(1), blue(line(3/2,20,3/2,-20)) ,
circle(0, 7,0.5),
graph( 300, 300, -20,20,-20,20, 0, x^2-3x+7) )}}}