<p>Researchers &nbsp;studied &nbsp;constant demand, &nbsp;exponentially increasing , decreasing &nbsp;and linearly demand pattern s. In this paper we have developed &nbsp;deterministic inventory models with quadratic demand patterns and variable holding cost with shortages. &nbsp;Deterioration rate is constant. Salvage value &nbsp;also associated with deteriorating items. Numerical example and sensitivity analysis is also studied at the end.</p>