Epsilon-Delta Proofs Help

[oTamimi]

So we are doing epsilon and delta proofs in class and just needed some insight on whether I did this question correctly and showed all the steps correctly

 

[stapel]

So we are doing epsilon and delta proofs in class and just needed some insight on whether I did this question correctly and showed all the steps correctly

I can't speak for others, but I know that I can't read all of the characters in this sideways image. Sorry.