A manufacturer determines that a product will reach the breakeven point if sold at either $80 or

Question:

A manufacturer determines that a product will reach the breakeven point if sold at either $80 or $150. At $80, the expense and revenue values are both $300,000. At $150, the expense and revenue values are both $100,000.
On graph paper, graph possible revenue and expense functions that depict this situation. Circle the breakeven points.