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anygoal [31]
3 years ago
13

2. A package of paper towels contains 3 rolls. Each package of paper towels costs $2.79. A function, f(x), is written to represe

nt the cost of purchasing x packages of paper towels. What is the practical domain for the function f(x)?
A. All real numbers
B. All whole numbers
C. All positive numbers
D. All whole numbers that are multiples of 3
Mathematics
1 answer:
kolbaska11 [484]3 years ago
4 0

Answer:

B

Step-by-step explanation:

Let x be the number of packages of paper towels.

Each package of paper towels costs $2.79.

Then x packages of paper towels cost $2.79x.

Hence, a function f(x) is

f(x)=2.79x

Practically, you can buy 0 packages, 1 package, 2 packages and so on, only whole numbers of packages, so practical domain is all whole numbers.

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