Peter opens a new bookstore and pays the book publisher $3.00 for each book he buys from them. The amount Peter pays is given by F (x) = 3x, where x is the number of books purchased.

Respuesta :

f(x) = 3x ; where x is the number of books purchased.

x  f(x)
0    0
1    3
2    6
3    9
4   12
5   15

I saw this problem and the instruction was to graph the function and show the domain and range. 

The domain is all the x-values while the range is all the y-values.