19. Discuss the asymptotic behavior of the function f (x) = 2x- 5x -12 3x2-1 1x-4 20. What, if any exist, are the coordinates of the holes in the graph of p(x) = 2x- + 3x -2, x2 - x- 6 ( 2x - 1) (x+ 2) 21. What, if any exist, are the zeros of h (x ) : ( x + 2 ) ( x - 3 ) 101 280assi svit "() .nohonuft arts muc wellot sift li snitmaisd To nonpups off al Todenimone orit To singob onT 1 22. Give an example of a rational function that has a slant asymptote and then find the slope of the slant asymptote. s . () lodging self