find f(a+h) - f(a) for the following function: f(x) = x^2 - 2x + 1

can anyone give me a step by step guide to do this? yeah yeah, I know its easy and I should know it. feel free to poke fun

thanks in advance

 

Sigh.

This is not a calculus question; it's an algebra question.

f(x) = x^2 - 2x + 1, so

f(a) = a^2 - 2a + 1, and

f(a + h) = (a + h)^2 - 2(a + h) + 1.

f(a + h) - f(a) = (a + h)^2 - 2(a + h) + 1 - [a^2 -2a + 1].

The rest is up to you.

 

By the way, you're welcome.

 

pathetic.

 

lol wheres the calculus in that? i was expecting the definition of derivative with limit h>0 and the whole equation /h, but nope didnt even get THAT, and thats not even calculus thats pre-cal =(.