**Different Types of Rates of Change of a Function**

The rate of change of a function describes the pace of modification that the variables $Y$ experience with respect to the change in the variables $X$.

The rate of change can be:

- $b>$ Constant Rate of Change - fixed

Describes a situation in which we will see constant intervals of variables $Y$ at constant intervals of variables $X$.

In a linear function (a straight line), the rate of change is constant and will be the slope of the function. **Non-constant Rate of Change - not fixed**

Describes a situation in which we will see different intervals of variables $Y$ at constant intervals of variables $X$.

In a function that is not linear (not a straight line), the rate of change will not be constant. Each part of the function will have a different slope.

We can see the rate of change represented in a graph, a table of values, or by creating steps or stairs in the graph of the function.