The graph below is the function f(t)\displaystyle {f{{\left({t}\right)}}}

12345678910-1-2-3-4-5-6-7-8-9-1012345678910-1-2-3-4-5-6-7-8-9-10tf(t)

Estimate limt2f(t)\displaystyle \lim_{{{t}\to-{2}^{{-}}}}{f{{\left({t}\right)}}}