F of x form. I need help working this problem out

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asked Mar 28, 2019 184k views

1 Answer

Shauntay · Answer 1 · 2019-04-03T21:15:02+0000

The formula for "average rate of change of a function from x=a to x=b" is

f(b) - f(a)
arc = ------------------
b - a

Here that is

4^3 - 2^3 64 - 8
arc = --------------- = ------------ = 56/2 = 28 (answer to part b)
4 - 2 2

F of x form. I need help working this problem out

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