For the function f(x)= 8/x+7,find the average rate of change of f from 1 to x.

Answer 1

Did you mean
f(x) = 8/(x+7)

then f(1) = 8/8 = 1

avg rate of change = (f(x) - f(1) )/(x-1)
= (8/(x+7) - 1)/(x-1)
= ( (8 - x - 7)/(x+7) )/(x-1)
= ( (1-x)/x+7) )/(x-1)
= -1/(x+7)

Answer 2

thank you so much!!

Answer 3

You are welcome.

(I have just answered 13 questions this morning, and you are the only one to say thank you or acknowledge the answer, much appreciated)