Graph the function. If there is a removable discontinuity, repair the break by redefining the function using an appropriate piecewise-defined function. 
Definitions:
Discount Rate
The interest rate used to discount future cash flows to their present value, often reflecting the riskiness of the investment or the cost of capital.
Total Cost Approach
A method in supply chain management that considers all costs associated with acquiring, transporting, and holding goods alongside their purchase price.
Discount Factor(s)
A multiplier used in discounting or present value calculations that reflects the time value of money.
Required Rate of Return
The minimum percentage return that an investor expects to receive from an investment, considering its risk.
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