To find the inverse, locate points on the graph. In this case, the plotted points are (4, -5) (5,-4) and (6,-1). To figure out the inverse, we just swap those around. (-5, 4) (-4, 5) and (-1, 6).
Some more points that you can plot are: (2, -1) (3, -4) and swap those around for (-1, 2) and (-4, 3).
