Answer
a.
verbal
b.
Input Description: a book purchased through amazon
Input Unit: none
Output Description: the price of the book
Output Unit: dollars
c.
function
d.
x
↓
Rule p
↓
p(x) dollars
Work Step by Step
a. The representation of the data is verbal because the data is in word format.
b. The input is a book purchased from amazon and the output is the price, because if you input what book you want you will get the output the price. There is no input unit because it is just books, the output unit is dollars because that is what you pay.
c. It is a function because there is only one price per book.
d. Draw an input/output diagram of the data.