Question

find the difference quotient of f; that is, find f(x+h)-f(x)/h, h cannot equal 0, a. f(x)=3x^2-2x+6

Answer 1

apply l hospital rule

Answer 2

I don't knwo what that means?

Answer 3

ok no problem
just express the function u want like fx-fx+h/h

Answer 4

this is what i have so far f(x+h)=3(x+h)^2-2(x+h)+6 I don't know where to go from there

Answer 5

take x common out of it and expand it with binomial just taking ist two terme out of it

Answer 6

so just 3^2-2+6? since i took out the common (x+h)

Answer 7

i m working it out plz wait

Answer 8

okay. thank you

Answer 9

u hav taken x+h common take x common

Answer 10

by the way i hav a short cut just differentiate it

Answer 11

I realized i wrote the problem wrong. its find the expression for f(x+h) by substituting x+h for each x in the expression for f(x) a. f(x+h)=3x^2-2x+6

Answer 12

u must hav got answer as 6x-2

Answer 13

i don't have anything yet, i'm unsure of how to solve it

Answer 14

see follow the steps
just arrange the whole function in the form fx+h-fx/h

Answer 15

then take x common from the term which hav x+h and then expand it with binomial to get rid from the degrees