3. What is the y-intercept of the line?

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,...
icon
Related questions
icon
Concept explainers
Question
**Understanding Graphs: Interpreting the Y-Intercept**

**Graph Description:**

The graph displays a red line showing the relationship between time (in minutes) and temperature (in Fahrenheit). The x-axis represents time in minutes, ranging from 0 to 6 minutes. The y-axis represents temperature in Fahrenheit, ranging from 0 to 300 Fahrenheit.

The red line starts at the point (0, 50) on the graph, indicating the initial temperature at 0 minutes is 50°F. As time increases, the temperature also increases in a linear fashion. At 2 minutes, the temperature is 150°F, and at 4 minutes the temperature reaches 250°F.

**Question:**

3. What is the y-intercept of the line?

**Explanation:**

The y-intercept of a line is the point where the line crosses the y-axis. This occurs when the value of x is 0. On the given graph, the red line crosses the y-axis at 50°F. Therefore, the y-intercept of the line is 50.

**Conclusion:**

Understanding the y-intercept is critical as it provides the starting value of the dependent variable (temperature) when the independent variable (time) is zero. In this example, at time 0 minutes, the temperature is already 50°F. This concept is fundamental in interpreting linear relationships in various scientific and mathematical contexts.
Transcribed Image Text:**Understanding Graphs: Interpreting the Y-Intercept** **Graph Description:** The graph displays a red line showing the relationship between time (in minutes) and temperature (in Fahrenheit). The x-axis represents time in minutes, ranging from 0 to 6 minutes. The y-axis represents temperature in Fahrenheit, ranging from 0 to 300 Fahrenheit. The red line starts at the point (0, 50) on the graph, indicating the initial temperature at 0 minutes is 50°F. As time increases, the temperature also increases in a linear fashion. At 2 minutes, the temperature is 150°F, and at 4 minutes the temperature reaches 250°F. **Question:** 3. What is the y-intercept of the line? **Explanation:** The y-intercept of a line is the point where the line crosses the y-axis. This occurs when the value of x is 0. On the given graph, the red line crosses the y-axis at 50°F. Therefore, the y-intercept of the line is 50. **Conclusion:** Understanding the y-intercept is critical as it provides the starting value of the dependent variable (temperature) when the independent variable (time) is zero. In this example, at time 0 minutes, the temperature is already 50°F. This concept is fundamental in interpreting linear relationships in various scientific and mathematical contexts.
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Points, Lines and Planes
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, algebra and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Algebra and Trigonometry (6th Edition)
Algebra and Trigonometry (6th Edition)
Algebra
ISBN:
9780134463216
Author:
Robert F. Blitzer
Publisher:
PEARSON
Contemporary Abstract Algebra
Contemporary Abstract Algebra
Algebra
ISBN:
9781305657960
Author:
Joseph Gallian
Publisher:
Cengage Learning
Linear Algebra: A Modern Introduction
Linear Algebra: A Modern Introduction
Algebra
ISBN:
9781285463247
Author:
David Poole
Publisher:
Cengage Learning
Algebra And Trigonometry (11th Edition)
Algebra And Trigonometry (11th Edition)
Algebra
ISBN:
9780135163078
Author:
Michael Sullivan
Publisher:
PEARSON
Introduction to Linear Algebra, Fifth Edition
Introduction to Linear Algebra, Fifth Edition
Algebra
ISBN:
9780980232776
Author:
Gilbert Strang
Publisher:
Wellesley-Cambridge Press
College Algebra (Collegiate Math)
College Algebra (Collegiate Math)
Algebra
ISBN:
9780077836344
Author:
Julie Miller, Donna Gerken
Publisher:
McGraw-Hill Education