Final answer:
The average rate of change of a quadratic function can be variable, meaning it can change at different points on the graph.
Step-by-step explanation:
The average rate of change of a quadratic function can be variable. A variable is something whose value can change over multiple measurements. In the context of a quadratic function, the rate of change (slope) can vary at different points on the graph. For example, a quadratic function with a narrow parabola will have a steeper slope at its vertex, while a quadratic function with a wider parabola will have a flatter slope.