Calculate the average rate of change of the given function over the given interval.

f(x) = x^2 − 3; [8, 9]

Question

Calculate the average rate of change of the given function over the given interval. 

f(x) = x^2 − 3; [8, 9]

anonymous · Answer

What did you get for my method as the answer?

anonymous · Answer

Why don't use the definition of average by integral ?

anonymous · Answer

Idk know how to do it!

anonymous · Answer

why do you use an intergral @ncdd  it's asking for the rate of change....I thought that's a derivative

anonymous · Answer

Oh sorry I really didn't understand the question. You can use also this method I think. 
by calculating the derivative indeed then use the definition of the average.
Sorry for this mis understood

anonymous · Answer

Yes find the derivative and use the definition of the averages

anonymous · Answer

If you can at least tell us the derivative @loco85 Ill help you solve it

anonymous · Answer

And nothing is more easy actually. because the integral of the derivative is the same function. so you just have to evaluate this function between 8 and 9.

anonymous · Answer

I got it' 17.

anonymous · Answer

I agree