SOLUTION: Please help me to solve this problem. For the cost function c=0.4q^2+4q+5 , find the rate of change of c with respect to q when q=2 .

Question 463716: Please help me to solve this problem. For the cost function c=0.4q^2+4q+5 , find the rate of change of c with respect to q when q=2 .
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
For the cost function c=0.4q^2+4q+5 , find the rate of change of c with respect to q when q=2
.
Begin by finding the first derivative of the function:
c=0.4q^2+4q+5
c'=0.8q+4
.
The "rate of change" when q=2:
c'=0.8(2)+4
c'=1.6+4
c'=5.6

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