E) Isabel's competition, who sells books and no other products, charges a shipping fee of $1.99 per book plus a fixed fee of $3 for each order. Let x be the number of books purchased and f (x) be the price of shipping one order of books. Write a function that expresses f (x) and explain the value of f (x) for x =

Question

Mathematics

Nathan Conrad

14 July, 16:31

E) Isabel's competition, who sells books and no other products, charges a shipping fee of $1.99 per book plus a fixed fee of $3 for each order. Let x be the number of books purchased and f (x) be the price of shipping one order of books. Write a function that expresses f (x) and explain the value of f (x) for x =

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Amira Zimmerman · Answer 1

Given:

x = number of books purchased

f (x) = price of shipping one order of books

fixed fee = 3 per order

variable fee: 1.99 per book

f (x) = 3 + 1.99x

assuming the x = 3

f (3) = 3 + 1.99 (3)

f (3) = 3 + 5.97

f (3) = 13.97

The shipping cost of 3 books is 13.97