posted by Bonnie .
Please Find the difference quotient
f(x+h)-fx/h for f(x)= 4x-9 and simplify
put x+h in f(x) to get 4x+4h-9
then subtract 4x+9 then divide by h
This is what I got, is it correct? Thanks!
Your answer is correct, but it is preferable to place parentheses where they are needed to avoid ambiguity, for example:
(4x-4x + 4h-9+9)/h