Aubrey and Charlie are driving to a city that is 120 mi from their house. They have already traveled 20 mi, and they are driving at a constant rate of 50 mi/h. Complete the function that models the distance they drive as a function of time. Then complete a reasonable domain for this situation. function notation in slope-intercept form: f(x) = reasonable domain: 0 SXS

Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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### Problem Statement

Aubrey and Charlie are driving to a city that is 120 miles from their house. They have already traveled 20 miles, and they are driving at a constant rate of 50 miles per hour. Complete the function that models the distance they drive as a function of time. Then complete a reasonable domain for this situation.

### Task

**Function Notation in Slope-Intercept Form:** 

\[ f(x) = \]

**Reasonable Domain:**

\[ 0 \leq x \leq 2 \]

### Explanation

- **Slope-Intercept Form:** The problem provides the rate at which Aubrey and Charlie are driving (50 miles per hour) and the initial amount of distance already traveled (20 miles). Use this information to write the function for total distance in the form of \( f(x) = mx + b \), where \( m \) represents the rate of travel and \( b \) represents the initial distance traveled.
  
- **Reasonable Domain:** The domain is the range of values that are valid for \( x \) in the context of this problem. Since they are traveling up to a certain point, consider the time \( x \) in hours that it will take them to reach the city.
Transcribed Image Text:### Problem Statement Aubrey and Charlie are driving to a city that is 120 miles from their house. They have already traveled 20 miles, and they are driving at a constant rate of 50 miles per hour. Complete the function that models the distance they drive as a function of time. Then complete a reasonable domain for this situation. ### Task **Function Notation in Slope-Intercept Form:** \[ f(x) = \] **Reasonable Domain:** \[ 0 \leq x \leq 2 \] ### Explanation - **Slope-Intercept Form:** The problem provides the rate at which Aubrey and Charlie are driving (50 miles per hour) and the initial amount of distance already traveled (20 miles). Use this information to write the function for total distance in the form of \( f(x) = mx + b \), where \( m \) represents the rate of travel and \( b \) represents the initial distance traveled. - **Reasonable Domain:** The domain is the range of values that are valid for \( x \) in the context of this problem. Since they are traveling up to a certain point, consider the time \( x \) in hours that it will take them to reach the city.
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