Attached is an image of a question I answered and submitted to be graded for my school. The very bottom in red shows the evaluation given back that I need to correct for number 1. Can you help me see how it is incorrect? The first part is all correct, I just included it for context.

The formal definition of the limit of a function is as follows: Let f : D -R with xo being an accumulation point of D. Then f has a limit L at xo if for each E > 0 there is a o > 0 that if 0 0 there exist o > 0 that if 0 0 If ( x) - LIKE |10x + 30 - 70| 0, prove that x-4 lim f(x) = L by using the formal definition of a limit of the function in the Assumptions section. Show and justify your work. Now for & > 0, choosing = - > 0 Then if 0 0 and o = =/10. It is not correct that 10/x - 4|