A manufacturing company produces two types of electronic devices, Model X and Model Y. The production manager uses the following system of inequalities to plan the weekly output, where represents the number of Model X devices and represents the number of Model Y devices:
In this system, what does the number 15 most likely represent?
The minimum number of Model X devices to be produced.
The total cost of producing all Model X devices.
The cost or resource requirement for producing one Model X device.
The maximum number of Model X devices that can be produced.
