sound system, t months after introduction. Find the rate of change of monthly sales. HINT [See Example 4(a).]
q'(1) -
Find the rate of change of the price.
p'(t) =
Find the rate of change of monthly revenue 5 months after the introduction of the sound system.
$ per month
Interpret your answer.
When t = the revenue is increasing at a rate of $ per month.