Question 146073
First, write it as a proper function:
C(n)=2.85n+30.52

Now, the c-intercept will be where n is 0. 

C(0)=30.52. Its interpretation is that when there is a complete absence of "n," the cost is 30.52.

Now, for the n-intercept, this is where C is 0.
0=2.85n+30.52
-30.52=2.85n
-10.7087719=n. Its interpretation is that when the cost is 0, "n" must be -10.7087719.


Graph it from n existing within [0,20]:
{{{graph( 300, 200, -2, 20, -25, 750, 2.85x+30.52 )}}}