In: Advanced Math
After the Introduction of a new product, the percent of the public that is aware of the product is approximated by
A(t)= 10t22-t
where t is time in months.
(a). Calculate A'(t).
(b). Find the rate of change of the percent of the public that is aware of the product after 2 months and after 4 months and include units.
(c). In part (b), one of your answers should have been positive while the other should have been negative. what dose that tell you about how the public awareness of the product has changed?
to find the rate of change take derivative
apply product rule of derivative
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.put t=2 months
percent of the public per month
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.put t=4 months
percent
of the public per month
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here we have
here positive sign indicates increasing rate
so after 2 months percent of the public aware of the product is increasing
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here we have
here negative sign indicates decreasing rate
so after 4 months percent of the public aware of the product is decreasing