what the x coordinate?

Answer:
x=-2
Step-by-step explanation:
If the question is asking for the intersection point, the answer is x=-2 or (-2,1) depending on if the teacher is asking for the intersection or value of x where it itersects
If the question is asking what the equation of the parabola is I would guess it is (x+1/2)^2 -4
I say go with x=-2 though