plz need help

1>For function f(x) whose graph is given above state lim x->3+ f(x)

2>For function f(x) whose graph is given above state lim x->3- f(x)

3>For function f(x) whose graph is given above state lim x->3 f(x)

4>For function f(x) whose graph is given above state lim x->-2 f(x)