[Q3] Solve the problem Silicon Valley Company's estimated formulas are as follows: Sales line Costs line Sales and Costs Formulas Y= 5X Y=X + $ 2,000 Required: 1. Define the profit function. (0198 79112) 2. Contribution Margin ratio ? 3. What is the break-even point in units ? (1972) 4. If the company sets the target profit of $ 4,000, how much is target sales? ( $4,000 ?)