Proving a limit using epsilon-delta

Test Preparation
1

<p>Hey, can anyone provide me with a concise explanation on how to prove a function's limit using the epsilon-delta definition? The textbook gives two examples but they're both of linear functions so it's not helpful at all.</p>

<p>I sorta thought I had done it correctly but my teacher gave my homework back to me (and to most people) and said that it basically sucked and I should redo it.</p>

<p>Two sample functions to use (if you use an example):</p>

<p>f(x) = radical x (x-->4)
f(x) = x^2 +1 (x-->1)</p>

<p>You don't have to go into a huge amount of depth.. i think i'm pretty smart and can understand things..</p>

<p>Thanks a lot for anyone who helps! (I'll hope)</p>

2

<p>Epsilon-delta limits... ahhhh! Thankfully, this is something that is not tested on the AP calc tests. I tried looking back at my Calc 3 notes, but it made no sense to me any more :/</p>

3

<p>heh well, that's good.. i guess</p>