The resale value of a textbook decreases by 25% with each previous owner. A new textbook is sold for $85. Which function represents the resale value of the textbook after x owners? f (x) = 85 (1 - 0.25) x f (x) = 85 (1 + 0.25) x f (x) = 85 (0.25) x f (x) = (85 - 0.25) x

Question

Mathematics

Easton Cooke

8 September, 10:59

The resale value of a textbook decreases by 25% with each previous owner. A new textbook is sold for $85. Which function represents the resale value of the textbook after x owners? f (x) = 85 (1 - 0.25) x f (x) = 85 (1 + 0.25) x f (x) = 85 (0.25) x f (x) = (85 - 0.25) x

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Answers (2)

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Brianna Bradley · Answer 1

85 * (1-.25) ^x

Step-by-step explanation:

The original cost of the book is 85 dollars

The book depreciates by 25%, so it will cost (1-25%) each time it is sold

The new cost is the original cost times depreciation

cost = 85 * (1-.25) ^x where x is the number of owners

Heidy Moreno · Answer 2

Heidy Moreno 8 September, 13:04

0

A. f (x) = 85 (1 - 0.25) x