Question 236220
f(x)=-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). 
The x intercept=-1 & there are no other x intercepts.
y=-x^2-2x-1
Let x=2
y=-2^2-2*2-1
y=-4-4-1
y=-9 or (2,-9)
Let x=-4
y=-4^2-2*-4-1
y=-16+8-1
y=-9 or (-4,-9)