The function f(x) is the total amount spent at a store, when purchasing x items that are $5 each and the items are not taxable

Question

3 years ago

12

The function f(x) is the total amount spent at a store, when purchasing x items that are $5 each and the items are not taxable

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What is the practical domain for the function f(x)?

A. all positive integers that are multiples of 5

B. all whole numbers

C. all positive integers

D. all real numbers

Mathematics

1 answer:

vagabundo [1.1K] · Answer 1 · 2022-04-14T00:53:16+03:00

vagabundo [1.1K]3 years ago

4 0

Answer:

B

Step-by-step explanation:

The domain is all possible values of x. Here, x is the number of $5 nontaxable items. So x must be an integer, and it can't be negative. It is possible for x to be 0. So x is all whole numbers.

The function ​f(x)​ is the total amount spent at a store, when purchasing x items that are $5 each and the items are not taxable

The function f(x) is the total amount spent at a store, when purchasing x items that are $5 each and the items are not taxable