look at this graph: \nwhat is the minimum value of this function?

look at this graph: \nwhat is the minimum value of this function?
Answer
Explanation:
Step1: Identify vertex of parabola
The graph is a parabola opening upward, so its vertex is the minimum point. The vertex is at $(0, 0)$.
Step2: Extract y-value of vertex
The minimum value of the function is the y-coordinate of the vertex.
Answer:
0