



 
Hi Tom, The average of a function g(x) from a to b is Let f(x) = x/(3x  1) then the rate of change of f(x) is given by f '(x) thus you want the average of f '(x) from 1 to 5. Look carefully at what you have to do. This problem is much easier than it seems. Harley Tom wrote back I get the answer: (5/14)  (1/2) / (4) which = 1/28 but this is wrong. Hi again Tom, I got the same numerical answer as you, 1/128 by using the technique in my earlier response. Can you tell me why you say "this is wrong"? Do you know what the "correct answer" is supposed to be? Harley  


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