Use a graphing utility to find numerical or graphical evidence to determine the left- and right-hand limits of f (x) as x approaches -1. If f (x) has a limit as x approaches -1, state it. If the limit does not exist, enter DNE. lim f(x) = I-x lim f(x) = x1+ lim f (x) x 1 = f(x) = |x+1| x+1