Use a graphing tool, such as Desmos graphing calculator, to determine the left- and right-hand limits of f (x) as x approaches 1. If f (x) has a limit as r approaches 1, state it. f (z) = -3, if x # 1 23 if x = 1 If the limit does not exist, enter DNE. lim f (x) = lim f (x) = 1 lim f (x) = 1 1-+1