Question

For the given cost function
C(x)=32400+600x+x^22 find:
a) The cost at the production level 1100
b) The average cost at the production level 1100
c) The marginal cost at the production level 1100
d) The production level that will minimize the average cost
e) The minimal average cost

Answer 1

I know the cost at the production level 1100= 1902400
and the Marginal cost at the production level 1100 = 2800

I dont know what equations to use to determine the other numbers though