Let f(x) = In(3x)+2.5
what is the average year rate of change of f(x) from 2 to 7
round your answer to the nearest hundredth.
a. -3.99
b.-0.25
c. .025
d. 3.99
\(\overline{\Delta f} = \dfrac{f(7)-f(2)}{7-2}\)
