Question: What is the significance of the vertex in the graph of a quadratic function?

Options:

1. It represents the maximum or minimum point of the function.
2. It is the point where the function crosses the y-axis.
3. It indicates the x-intercepts of the function.
4. It is the point where the function is undefined.

Correct Answer: It represents the maximum or minimum point of the function.

Solution:

The vertex of a quadratic function is the point at which the function reaches its maximum or minimum value.