Answer:
Total cost function is [tex]C(x)=9\frac{x^{2} }{2} +20000[/tex]
Explanation:
Hi, you just need to integrate the marginal cost function and that is it. Check the process below.
[tex]C(x)=\int\limits^a_b {(9x+e)} \, dx =9\frac{x^{2} }{2} +C[/tex]
Finally, the cost function is.
[tex]C(x)=9\frac{x^{2} }{2}+20000[/tex]
Best of luck