() A function is said to have a horizontal asymptote if either the limit at infinity exists or the limit at negative infinity exists. Show that each of the following functions has a horizontal asymptote by calculating the given limit. -14x lim c->0 12 + 2x 2x - 4 lim my-00 3 + 11x - 11 x2 - 7x -14 lim 14 - 10x2 Vaz + 3x lim 11 - 12x Vx2 + 3x lim 11 - 12x