Linear Functions: Applications. Question: A firm sells a single product of $65 per unit. Variable costs unit are $20 for materials and $27.50 for labor. Annual fixed costs are $100,000. Construct the profit function stated in terms of x, the number of units produced and sold. What profit is earned if annual sales are 20,000 units?

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How many units must be produced and sold in order to

  1. Earn a profit of $1.5 million
  2. Earn zero profit? ( break-even)