The marginal cost is $MC = 3x^{2} + 4x$ rupees and the fixed cost is ₹100. What is the average cost function?

x^{3} + 2 x^{2} + 100

Correct answerYour answer

x^{2} + 2 x + 100

Correct answerYour answer

3 x + 4 + \frac{100}{x}

Correct answerYour answer

x^{2} + 2 x + \frac{100}{x}

Correct answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer D

Correct answer: D

Worth noting

$x^{2} + 2x + 100$ divides only the variable part by $x$ ; the fixed cost is shared too.

Ten questions from Consumer & Producer Surplus, at your own pace.

Ten questions from Consumer & Producer Surplus, at your own pace.

The marginal cost is MC=3x2+4xMC = 3x^{2} + 4xMC=3x2+4x rupees and the fixed cost is ₹100. What is the average cost function?