AnswersAlgebraic ReasoningN/A — ExamQuestion 32
32
QuizMultiple Choice

N/A — Exam

Question 32 • Algebraic Reasoning

The function f of x is equal to 0 point 5 x plus 3 is used to estimate the number of pounds of potatoes a caterer plans to make depending on the number of people being served, x The mathematical domain for the function is the set of real numbers. Which statement describes the limitation for the reasonable domain compared to the mathematical domain?

Answer
A
The reasonable domain contains only positive whole numbers.
B
The reasonable domain contains only positive real numbers.
C
The reasonable domain contains only real numbers greater than 3 .
D
The reasonable domain contains only rational numbers greater than 3 .

Explanation

The input x represents the number of people being served, so it must be a count. Counts are whole numbers, not fractions or decimals, and the caterer is serving a positive number of people. Therefore, the reasonable domain contains only positive whole numbers, which is choice A.

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