El gráfico de la función cruce el eje X con f = 0
o sea hay que resolver la ecuación:
$$\frac{\left(\frac{x}{4} + \left|{\frac{x}{4} + \frac{4}{x}}\right|\right) + \frac{4}{x}}{2} = 0$$
Resolvermos esta ecuaciónPuntos de cruce con el eje X:
Solución numérica$$x_{1} = -0.573069559668156$$
$$x_{2} = -68.3184666390594$$
$$x_{3} = -0.471351351351351$$
$$x_{4} = -0.848695652173913$$
$$x_{5} = -0.950805398345668$$
$$x_{6} = -0.410677618069815$$
$$x_{7} = -93.7607979893689$$
$$x_{8} = -0.400374765771393$$
$$x_{9} = -1.01181102362205$$
$$x_{10} = -59.7809343434343$$
$$x_{11} = -28.279689608637$$
$$x_{12} = -0.355763893172146$$
$$x_{13} = -69.0925583214749$$
$$x_{14} = -0.805520702634881$$
$$x_{15} = -25.9381975446429$$
$$x_{16} = -47.8118359067269$$
$$x_{17} = -0.320111899290638$$
$$x_{18} = -45.4336930003498$$
$$x_{19} = -1.856$$
$$x_{20} = -41.842342179092$$
$$x_{21} = -2.46321525885559$$
$$x_{22} = -57.7416002935287$$
$$x_{23} = -0.381249114856253$$
$$x_{24} = -71.9570314031057$$
$$x_{25} = -0.445044350173544$$
$$x_{26} = -49.8667344929056$$
$$x_{27} = -0.642499499299019$$
$$x_{28} = -77.4950279791414$$
$$x_{29} = -20.732313239645$$
$$x_{30} = -0.5009765625$$
$$x_{31} = -0.37235695467135$$
$$x_{32} = -9.94375$$
$$x_{33} = -88.5928495612807$$
$$x_{34} = -30.0935243403135$$
$$x_{35} = -5.2$$
$$x_{36} = -0.517236893456485$$
$$x_{37} = -9.11627906976744$$
$$x_{38} = -0.363870967741936$$
$$x_{39} = -0.33347788378144$$
$$x_{40} = -79.7948987616918$$
$$x_{41} = -37.7840141037626$$
$$x_{42} = -2$$
$$x_{43} = -0.59447400034323$$
$$x_{44} = -102.193141163736$$
$$x_{45} = -1.65552699228792$$
$$x_{46} = -0.534592942484023$$
$$x_{47} = -26.6508218713505$$
$$x_{48} = -0.766562411145863$$
$$x_{49} = -0.669565217391304$$
$$x_{50} = -13.8928571428571$$
$$x_{51} = -0.457819034989289$$
$$x_{52} = -132$$
$$x_{53} = -0.32665799739922$$
$$x_{54} = -0.485711006541949$$
$$x_{55} = -0.348010860583166$$
$$x_{56} = -15.3176038962946$$
$$x_{57} = -64$$
$$x_{58} = -55.8037808764958$$
$$x_{59} = -44.2178725094566$$
$$x_{60} = -17.7825854700855$$
$$x_{61} = -1.16129032258065$$
$$x_{62} = -0.340589133261718$$
$$x_{63} = -39.6587949693844$$
$$x_{64} = -22.2326832175178$$
$$x_{65} = -11.75$$
$$x_{66} = -69.9484615622229$$
$$x_{67} = -1.49524815205913$$
$$x_{68} = -70.9685435151473$$
$$x_{69} = -1.66931392299985$$
$$x_{70} = -0.731227343345417$$
$$x_{71} = -0.553159851301115$$
$$x_{72} = -8$$
$$x_{73} = -2.9618320610687$$
$$x_{74} = -0.432965227708314$$
$$x_{75} = -3.21569603451137$$
$$x_{76} = -32$$
$$x_{77} = -96.7506464290549$$
$$x_{78} = -20.9790685239333$$
$$x_{79} = -63.9585248953014$$
$$x_{80} = -78.7056111291347$$
$$x_{81} = -3.74566473988439$$
$$x_{82} = -2.11475409836066$$
$$x_{83} = -0.390577394664487$$
$$x_{84} = -1.36395759717314$$
$$x_{85} = -0.699029126213592$$
$$x_{86} = -31.2102721785618$$
$$x_{87} = -84.5242741388898$$
$$x_{88} = -93.1209068262518$$
$$x_{89} = -104.131879484838$$
$$x_{90} = -0.61754905590522$$
$$x_{91} = -16$$
$$x_{92} = -0.421526215608237$$
$$x_{93} = -1.08132361189007$$
$$x_{94} = -4$$
$$x_{95} = -0.896819239720714$$
$$x_{96} = -1.2543135783946$$
$$x_{97} = -45.3505151872655$$
$$x_{98} = -35.7477215029731$$