## Bladerunner1122 Group Title Find the average value of the function f on the given interval. f(x)=√x on the interval [1,9] Please explain the process. one year ago one year ago

1. amoodarya

2. amoodarya

3. abb0t

You are dealing with the fundamental theorem of calculus pt. II. According to FToC II Suppose f(x) is a contunuous function on an interval [a, b] which in your case is [1,9]. and supposed that F(x) is any anti-derviateive for f(x). Then: $\int\limits_{1}^{9}\sqrt{x}dx = F(x)$ where F(x) is evalauted on the inteval [1,9] meaning: $F(b) - F (a) = F(9)-F(1)$

4. abb0t

@amoodarya that's very helpful! Good job, but I think you should of let him try it out on his own first as this is a Calculus course which requires more critical thinking and application.

5. amoodarya

sorry for hurry

I'm trying to understand how to get the answer. Thanks both of you. :)

(emphasis on "how to") ;)

8. abb0t

If there's any confusion, please ask. It's best to ask all the questions now and know for certain than be uncertain during an exam.

Thanks, I think I'm good for now, but I may come back to ask more questions.

It just occurred to me that the answer is wrong because I wanted it on the interval [1,9] not [0,9].

11. amoodarya