If 3x-6/x-2, what is the average rate of change of f (x) over the interval [6, 8]?

A. 0

B. 1

C. 3

D. 3

E. 0.5

The average rate of change just means the slope

that is, the slope from (6, f (6)) to (8, f (8))

f (6) = (3 (6) - 6) / (6-2) = (18-6) / 4=12/4=3

f (8) = (3 (8) - 6) / (8-2) = (24-6) / 6=18/6=3

the rate of change from (6,3) to (8,3) is 0/2 or 0

answer is A

It would be 0.5 i think