Question 196381
y=-x^2+2x-1
{{{ graph( 300, 200, -6, 5, -10, 10, -x^2 +2x +1) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, -x^2 +2x +1). 
There are 2 x intercepts & the vertex is above the x axis.