A function is said to have a vertical asymptote wherever the limit on the left or right (or both) is either positive or negative infinity For example, the function f(x) -3(x + 2) x + 4x + 4 Find each of the following limits. -3(x+2) lim * x + 4x +4 lim 2+ lim 2 -3(x+2) x + 4x + 4 -3(x + 2) x + 4x + 4 = = has a vertical asymptote at x = 2. help (limits) help (limits) help (limits)