college algebra
posted by ladybug on .
for the function f(x)=7/x+6, find the average rate of change of f from 1 to x.

f(x)  f(1)

x1
7/(x+6)  1

x1
7  (x+6)

(x1)(x+6)
1x

(x1)(x+6)
1/(x+6)