In Exercises 1-5, use the graph of the function f to estimate the limit if it exists. Write too if the limit is immeasurably large, -co If immeasurably small, and DNE if the limit does not exist. (Note: The broken green lines are asymptotes.) 1. (a) lim f(x) x-+-2 (b) limf (x) X-D (c) lim f (x) (d) lim f(x) -6 -5 -413 -2-1 1 2 -2 -3 -42. (a) limf (x) *-0 (b) lim f(x) (c) lim f(x) (d) limf (x) -3 2 -1 0 11 2 3 4 5 X -1 3. (a) limf (x) x-0' (b) lim f(x) A (c) lim f (x) (d) limf (x) 4 -3 -2 -1 1 2 3 4 -1