# Math Help - Average value of a function

1. ## Average value of a function

• Let the function f be defined as
F(x) = ((x^2)-1)/((x^2)+1)
Calculate the average of f, avg (f), on the interval [0,2]

• Find the average of the function f(x)=x-(x^3)
Thanks

2. Originally Posted by ces91
• Let the function f be defined as
F(x) = ((x^2)-1)/((x^2)+1)
Calculate the average of f, avg (f), on the interval [0,2]

• Find the average of the function f(x)=x-(x^3)
Thanks
The average value of a function f(x) over the interval [a, b] is $\frac{1}{b - a} \int_a^b f(x) \, dx$.

This formula is undoubtedly in your class notes and textbook. If you need more help, please show all your working and say where you are stuck.