The model demonstrates intervals where a function f(x) = sqrt(x^{2}5x+6)/(x5) is negative. Note that x^{2}5x+6 = (x2.5)^{2}0.25 and is negative on (2; 3). Thus the f(x) is not defined on this interval. A square root function is positive. Consequently the sign of f(x) is the same as the sign of x5 except x=5 where 1/(x5) is undefined. The f(x) is negative if x belongs to a union of intervals (?; 2) and (3; 5). The model is a movie. To navigate through the movie use Play, Pause, Stop, Previous step and Next step buttons.
