You can put this solution on YOUR website!
*sorry, the graph doesn't extend all the way to (-4,0)
Limitation To Domain:
A real number squared will not give you a negative number, so:
Vertex: (-4,f(x)) = (-4,0)
Shading:
If you pick the point: (-4,1)
You get: which is correct
You would shade only above the solid line, not to the left or under it.
If it helps you, you can draw a vertical line at . Shade above the graphed square root line and to the right of the vertical line.