Find the vertex of this
quadratic.
([?], [ ]
2
1
X
-4 -3 -2 -1 0 1 2 3 4
-1
-2
-3
-4

The vertex of the parabola is .

Step-by-step explanation:

In this case, the vertex of the parabola is the absolute maximum of the graph, that is, the point .  Mathematically speaking, the vertex of the parabola is represents the only point of the range () which is related to an only value of the domain ().