The short-run total costs of a firm are given by the formula
SRTC = \$ \left( {10{\text{ }}000 + 5{X^2}} \right)
where X is the level of output.
What are the firm’s average fixed costs?
1 )
$10 000
2 )
\frac{{{\text{\$ (10000 + 5}}{{\text{X}}^2})}}{X}
\frac{{{\text{\$ 10000}}}}{X}
4 )
\frac{{{\text{\$ (5}}{{\text{X}}^2}{\text{ - 10000)}}}}{X}