Mapiya writes a series of novels. She earned $75,000 for the first book, and her cumulative earnings double with each sequel that she writes.Write a function that gives Mapiya's cumulative earnings E(n), in dollars, when she has written n sequels.Do not enter commas in your answer.E(n)=
Q. Mapiya writes a series of novels. She earned $75,000 for the first book, and her cumulative earnings double with each sequel that she writes.Write a function that gives Mapiya's cumulative earnings E(n), in dollars, when she has written n sequels.Do not enter commas in your answer.E(n)=
Mapiya's Earnings: Mapiya's earnings for the first book are $75,000. Since her cumulative earnings double with each sequel, we can express her earnings as a function of the number of sequels written using powers of 2. For the first book (0 sequels), her earnings are $75,000. For each sequel written, we multiply the previous total by 2. This can be expressed as E(n)=$75,000×2n, where n is the number of sequels written.
Expressing Earnings as a Function: To ensure the function is correct, let's check a few values. If Mapiya writes 1 sequel, her cumulative earnings should be $75,000×21=$150,000. If she writes 2 sequels, her cumulative earnings should be $75,000×22=$300,000. These checks are consistent with the doubling pattern described.
Checking the Function: The final function for Mapiya's cumulative earnings E(n) when she has written n sequels is E(n)=75000×2n.
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