Y is a function of x because for each x-coordinate there is exactly one y-coordinate.
Answer:
In this question, we want to find the average rate of change of a function over an interval, it represents how much f(x) changes when x changes by 1.
Athe the average rate of change:
The average rate of change of a function over an interval [a,b] is given by:
In this question:
Between x = 4 and x = 6, so . Then
Then
Thus, the average rate of change of the function is 152, that is, when x changes by 1, y changes by 152.
