Question

C(x)=100+3x^2+4x . marginal cost at x=5 C(x)=100+3x^2+4x . marginal cost at x=5 @Mathematics

Answer 1

C'(x)=6x+4
6(5)+4=34

Answer 2

I can't remember if there is another step after this or if the marginal cost is $34
last time I did marginal cost was over a year ago

Answer 3

marginal cost is the change in total cost that arises when the quantity produced changes by one unit (from Wikipedia: http://en.wikipedia.org/wiki/Marginal_cost)

Answer 4

Based on that, 34 is the marginal cost for x=5

Answer 5

Oh i got it right yay!