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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 writes a series of novels. She earned $75,000 \$ 75,000 for the first book, and her cumulative earnings double with each sequel that she writes.\newlineWrite a function that gives Mapiya's cumulative earnings E(n) E(n) , in dollars, when she has written n n sequels.\newlineDo not enter commas in your answer.\newlineE(n)= E(n)=

Full solution

Q. Mapiya writes a series of novels. She earned $75,000 \$ 75,000 for the first book, and her cumulative earnings double with each sequel that she writes.\newlineWrite a function that gives Mapiya's cumulative earnings E(n) E(n) , in dollars, when she has written n n sequels.\newlineDo not enter commas in your answer.\newlineE(n)= E(n)=
  1. Mapiya's Earnings: Mapiya's earnings for the first book are $75,000\$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 22. For the first book (00 sequels), her earnings are $75,000\$75,000. For each sequel written, we multiply the previous total by 22. This can be expressed as E(n)=$75,000×2nE(n) = \$75,000 \times 2^n, where nn is the number of sequels written.
  2. Expressing Earnings as a Function: To ensure the function is correct, let's check a few values. If Mapiya writes 11 sequel, her cumulative earnings should be $75,000×21=$150,000\$75,000 \times 2^1 = \$150,000. If she writes 22 sequels, her cumulative earnings should be $75,000×22=$300,000\$75,000 \times 2^2 = \$300,000. These checks are consistent with the doubling pattern described.
  3. Checking the Function: The final function for Mapiya's cumulative earnings E(n)E(n) when she has written nn sequels is E(n)=75000×2nE(n) = 75000 \times 2^n.

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