Multiple Select Question

Kinah works in a bakery and is making peach pies. She makes 40 pies and uses 6 peaches for each pie. The number of peaches that she uses to make the pies is a function of the number of pies that she makes.

Which of these statements describe the domain or range of this function? Select two that apply.
A.
The range is the set of all integers from 0 to 40.

B.
The domain is the set of all integers from 0 to 40.

C.
The range is the set of all multiples of 6 from 0 to 240.

D.
The domain is the set of all multiples of 6 from 0 to 240.

1 answer

To solve this problem, we need to understand the relationship between the number of pies Kinah makes and the number of peaches she uses.

  1. Kinah makes 40 pies at a maximum, and for each pie, she uses 6 peaches. Therefore, the number of peaches (which is the output or range) depends on the number of pies made (which is the input or domain).

Let’s evaluate the given options:

A. The range is the set of all integers from 0 to 40.

  • This statement is false. The range refers to the number of peaches used, which is calculated as \(6 \times \text{number of pies}\). Therefore, the range would be multiples of 6 (0, 6, 12, ... up to 240), not simply integers from 0 to 40.

B. The domain is the set of all integers from 0 to 40.

  • This statement is true. The domain (the number of pies she can make) ranges from 0 (no pies) to 40 (maximum pies).

C. The range is the set of all multiples of 6 from 0 to 240.

  • This statement is true. Since Kinah uses 6 peaches for each pie, if she makes 0 to 40 pies, the total peaches used will be \(6 \times \text{number of pies}\), leading to the set {0, 6, 12, ..., 240}.

D. The domain is the set of all multiples of 6 from 0 to 240.

  • This statement is false. The domain includes all integers from 0 to 40, not just multiples of 6.

Based on the evaluation, the two correct statements that describe the domain or range of this function are:

B. The domain is the set of all integers from 0 to 40.

C. The range is the set of all multiples of 6 from 0 to 240.