Concept explainers
Business: effect of advertising. Twin City Roasters introduced a new coffee in a trial run. The firm advertised the coffee on television and found that the percentage
a. What percentage of people bought the coffee before seeing the ad
b. What percentage bought the coffee after the ad had been run 1 time? 5 times? 10 times? 20 times? 30 times?
c. Find the rate of change,
d. Interpret the meaning of
e. Sketch a graph of the function.
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