**Rate of change represented by steps in the function graph**

We can draw stairs on the graph of the function to see the rate of change.

The base of the step will represent the interval in the $X$ variables and the height will symbolize the interval in the $Y$.

The step will mark the "jump" from $X$ in relation to the "jump" in $Y$.

The bases of the steps will always be the same since we always choose fixed intervals in $X$.

- If the heights of the steps are increasing, it means that the rate of change is increasing.
- If the heights of the steps are decreasing, it means that the rate of change is decreasing.
- If the heights of the steps do not change, it means that the rate of change is constant.