Set 4: Linear Equations (Advanced)

Explanation

Answer: B

A company's profit is $P = 50x - 200$ . What is the break-even point ( $P=0$ )?

✓ Correct

200

Detailed Explanation

Choice B is correct. Choice D is the correct answer. 1. Set P=0: $50x - 200 = 0$ 2. Add 200: $50x = 200$ 3. Divide by 50: $x = 4$ Choice C is incorrect because it results from an error in the solution process. Choice A is incorrect because it results from an error in the solution process. Choice C is incorrect because it results from an error in the solution process.

Key Steps:

•

The correct answer is 4

Why others are wrong:

A: Choice A is incorrect and may result from a calculation error.

C: Choice C is incorrect and may result from a calculation error.

D: Choice D is incorrect and may result from a calculation error.

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