Question
Given a cost function $C(x)$ as
$C(x) = 10,000 + 20x$,
which of the following represents the marginal average cost function?
Select the correct answer below:
$C'_{ave} = \frac{10,000}{x^2} + 20$
$C'_{ave} = -\frac{10,000}{x^2} + 20$
$C'_{ave} = -\frac{10,000}{x^2}$
$C'_{ave} = \frac{10,000}{x^2}$