No it doesn’t not show a function
Work equals force times distance. In this case, work equals mgh (mg is the force and h is the distance. Solving the equation W = mgh gives you W = (3.4 kg)(9.8 m/s^2)(1.4 m) = 47 J (joules).
46 = (7*4) +(10/2) +13
46 = 28 +5 +13
46 = 46
so than i ve understood it right your exercise