Question

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.

Answer 1

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.