Question

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

Explanation:

Step1: Identify the vertex of the parabola

The graph is a parabola opening upward, so its minimum value is the y-coordinate of its vertex.

Step2: Locate the vertex on the graph

The vertex (lowest point) of the parabola is at the point where $y = -10$.

Answer:

-10