Finding a Limit Graphically In Exercises 23-30, use the graph to find the limit (if it exists). If the limit does not exist, explain why. lim (4 - x) 24. lim sec x 3+ N lim f(x) 26. lim f(x) AN = to. 14- x, x N 2 f(x) = 12, [x + 3, x# 1 'x=1 3+ 2