IntroFoundations
Average Rate of Change
Overview
The average rate of change measures how much a function changes over an interval. It is the slope of the secant line connecting two points on the curve.
Key Concepts
1
Average rate = Δy / Δx = [f(b) − f(a)] / (b − a)
2
Represents the slope of the secant line between two points
3
Positive rate → increasing; negative rate → decreasing
See it in action
Use the interactive visualizer to explore this concept with real graphs.