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 .
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
1 answer:
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.
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Step-by-step explanation:
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Answer:
Option A
Step-by-step explanation:
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