Question 132083
f(x)=x^2-8x+9
{{{ graph( 300, 200, -6, 10, -10, 10, x^2 -8x +9) }}} (graph 300x200 pixels, x from -6 to 10, y from -10 to 10, x^2 -8x +9). 
(1.354,0)(6.646,0)(0,9)