Question 250265
f(x)=-x^2+2x+8
{{{ graph( 300, 200, -6, 5, -10, 10, -x^2 +2x +8) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, 
-x^2 +2x +8).
Vertex=(1,9)
Y intercept=8
X intercepts=-2 & 4