I need to understand how to solve this type of problem.. I'm not sure where to begin

Part 1: Basic Limits You will explore several functions and answer questions about the limit of the functions at various points. How can you find one-sided and two-sided limits graphically? 1. Estimate the limits from the given graph. Be sure to write what each limit is asking for and then estimate its value 10 a. lim 5 b. lim H -5 c. lim x-2- -5 d. lim X- -2+ e. lim X--1+