Question

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

Explanation:

Step1: Identify the vertex

The minimum of a parabola opening upwards is at its vertex. In the given graph, the vertex is at the point where the parabola changes direction.

Step2: Read y - value of vertex

The vertex of the parabola lies on the x - axis. Looking at the grid, the y - value at the vertex is 0.

Answer:

0