Revenue Function

1. A company receives $100 for each unit sold. Each unit costs the company $20 to produce and to run the machines there is a fixed cost of $800. The company wants to ensure that any Revenue generated by the machine must be non-negative (i.e. they produce enough units to warrant the startup cost)
   1. Write an equation for the revenue of this company R(x)
   2. What is the domain for your function? (write the first few allowed values for x)
   3. What is the range for your function (write the first few allowed values for y)
   4. Evaluate this function for x=25, 50, and 100 units produced