For which interval is the average rate of change of f(x) negative?

The interval at which the average rate of change of f(x) is negative is from x = 0 to x = 2.5.What is the average rate of change?The average rate of change is a type of function that describes the average rate at which a quanity decreases or increases with respect to another quanity.Generally, for a function with a negative average rate of change, the graph must face down and have a negative slope. Based on the graph shown in the image attached below, we can deduce that the interval for which the average rate of change of f(x) is negative is from x = 0 to x = 2.5.Read more on functions here: