# Algebra 2a Help?

What is the average rate of change of f(x), represented by the graph, over the interval [-1, 2]?

a. -2.5

b. -2

c. 2.5

d. 3

e. 6

Help would be much appreciated !!!

a. -2.5

b. -2

c. 2.5

d. 3

e. 6

Help would be much appreciated !!!

[f(2)-f(-1)]/[2--1] = (2.5--5)/(3)

= 7.5/3 = 2.5

However this interval contains two discontinuities so the value does not mean much.

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