Senior High School uses the function f(s), where s is the number of students, to model how many students have late arrival or early d from school. A reasonable domain for this function would be 1. positive integers 2. positive real numbers

Algebra and Trigonometry (6th Edition)
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ChapterP: Prerequisites: Fundamental Concepts Of Algebra
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Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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***Educational Content on Reasonable Domains for Functions***

**Problem Statement:**

\[ \text{[School Name]} \]Senior High School uses the function \(f(s)\), where \(s\) is the number of students, to model how many students have late arrival or early dismissal from school. A reasonable domain for this function would be:

1. positive integers
2. positive real numbers
3. negative real numbers
4. both positive and negative real numbers.

**Explanation:**

In this scenario, the function \(f(s)\) maps the number of students \(s\) to the count of students who arrive late or leave early. Let's analyze each option for the domain:

1. **Positive Integers:**  
   Positive integers are suitable for modeling the number of students because you cannot have a fraction or decimal of a student. The count starts from 1 and goes upwards (1, 2, 3, ...).

2. **Positive Real Numbers:**  
   Positive real numbers include all positive fractions and decimals, which are not practical in this context since the number of students is always a whole number.

3. **Negative Real Numbers:**  
   Negative numbers do not make sense in this context because you cannot have a negative count of students.

4. **Both Positive and Negative Real Numbers:**  
   Including both positive and negative real numbers is not practical here because while positive numbers represent a realistic count of students, negative numbers do not have any meaningful interpretation within this context.

Hence, the most appropriate domain for the function \(f(s)\) is **positive integers** (Option 1).

---

Note: The text has been adapted to ensure relevance and clarity for educational purposes, focusing on understanding the practical application of domains in mathematical modeling.
Transcribed Image Text:***Educational Content on Reasonable Domains for Functions*** **Problem Statement:** \[ \text{[School Name]} \]Senior High School uses the function \(f(s)\), where \(s\) is the number of students, to model how many students have late arrival or early dismissal from school. A reasonable domain for this function would be: 1. positive integers 2. positive real numbers 3. negative real numbers 4. both positive and negative real numbers. **Explanation:** In this scenario, the function \(f(s)\) maps the number of students \(s\) to the count of students who arrive late or leave early. Let's analyze each option for the domain: 1. **Positive Integers:** Positive integers are suitable for modeling the number of students because you cannot have a fraction or decimal of a student. The count starts from 1 and goes upwards (1, 2, 3, ...). 2. **Positive Real Numbers:** Positive real numbers include all positive fractions and decimals, which are not practical in this context since the number of students is always a whole number. 3. **Negative Real Numbers:** Negative numbers do not make sense in this context because you cannot have a negative count of students. 4. **Both Positive and Negative Real Numbers:** Including both positive and negative real numbers is not practical here because while positive numbers represent a realistic count of students, negative numbers do not have any meaningful interpretation within this context. Hence, the most appropriate domain for the function \(f(s)\) is **positive integers** (Option 1). --- Note: The text has been adapted to ensure relevance and clarity for educational purposes, focusing on understanding the practical application of domains in mathematical modeling.
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