Question 463716
For the cost function c=0.4q^2+4q+5 , find the rate of change of c with respect to q when q=2
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Begin by finding the first derivative of the function:
c=0.4q^2+4q+5
c'=0.8q+4
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The "rate of change" when q=2:
c'=0.8(2)+4
c'=1.6+4
c'=5.6