494,977 views
6 votes
6 votes
Ƒ(x) = x² - x - 1
What is the average rate of change of f over
the interval -1 ≤ x ≤ 1?

User Molokoloco
by
2.6k points

1 Answer

26 votes
26 votes

Answer: -1

Explanation:


f(-1)=(-1)^2 - (-1)-1=1\\\\f(1)=1^(2)-1-1=-1\\\\\therefore (f(-1)-f(1))/(-1-1)=(1-(-1))/(-1-1)=(2)/(-2)=\boxed{-1}

Ƒ(x) = x² - x - 1 What is the average rate of change of f over the interval -1 ≤ x-example-1
User James Eaves
by
3.1k points