Find and simplify the difference quotient (f(x + h) − f(x))/ h for the following function. f(x) = 7x − 2

Question

i cant figure it out

Answer 1

7(x+h)-2 -(7x-2)

-----------------------  =

              h

7x + 7h - 2 - 7x + 2

------------------------ =

                h

7h

--    =       7

h