Concept explainers
Consumer issues. You work in a department store in which employees are entitled to a 20%
discount on their purchases In addition, the store is offering a 10% discount on all items. Let x represent the retail price of an item.
a. Write a function x) that models discounting an item by 20%.
b. Write a function g(x)that models discounting an item by 10%.
c. Us. a composition of your two functions from (a) and (b) to model taking the 20% discount first.
d. Use a composition of your two functions from (a) and (b) to model taking the 10% discount first.
e. Use the composite functions from (C) and (d) to decide which discount you would prefer to take first.
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Precalculus: A Unit Circle Approach with Integrated Review, Books a la Carte Edition, plus MyLab Math with Pearson eText and Worksheets -- Access Card Package (3rd Edition)
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