So here's my work so far. My teacher is saying that the f(3)=14 is useful in taking the limit. My question is, since |f(x)|<x^8+10 is a parabola going to positive infinity from 2<x<oo, how do I determine what f(x) is? All the values I get when plugging in values for x^8+10 are huge because its going to infinity. Thank you for the help.