SOLUTION: Please help me to solve this problem. If {{{c=0.3q^2+2q+850}}} is a cost function, how fast is marginal cost changing when q=100 ?

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Please help me to solve this problem. If {{{c=0.3q^2+2q+850}}} is a cost function, how fast is marginal cost changing when q=100 ?      Log On


   

Question 464079: Please help me to solve this problem. If c=0.3q%5E2%2B2q%2B850 is a cost function, how fast is marginal cost changing when q=100 ?
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
If c=0.3q%5E2%2B2q%2B850 is a cost function, how fast is marginal cost changing when q=100 ?
.
Find the derivative of:
c=0.3q%5E2%2B2q%2B850
c' = 0.6q%2B2q
.
set q to 100 and find c':
0.6%28100%29%2B2%28100%29
60%2B200
260