Answer:
Option D) 5
Explanation:
In the given graph of a parabola, and the equation in vertex form, y = (x - k )²: The variable k represents the x-coordinate of the vertex, and the point where the axis of symmetry lies on the graph. In the given graph, the vertex is the minimum point, occurring at point (5, 0). The x-coordinate of the vertex is also the value of k = 5.
Therefore, the correct answer is Option D) k = 5.