Back To Course

High School Algebra I: Help and Review25 chapters | 292 lessons

Watch short & fun videos
**
Start Your Free Trial Today
**

Start Your Free Trial To Continue Watching

As a member, you'll also get unlimited access to over 70,000 lessons in math, English, science, history, and more. Plus, get practice tests, quizzes, and personalized coaching to help you succeed.

Free 5-day trial
Your next lesson will play in
10 seconds

Lesson Transcript

Instructor:
*Cory Haley*

We will explore the function and examples of a double line graph. In this lesson, you will also learn to create questions and interpret data from a double line graph.

First, let's review what is a line graph? A **line graph** is a graphical display of information that shows a continuous change. The lines in a line graph can ascend and descend based on the data. Within a line graph the data points connect. We can use line graphs to show a comparison with events, situations, and information. A line graph may also be referred to as a line chart.

A **double line graph** is a line graph with two lines connecting points to show a continuous change. Just like a line graph, the lines can ascend and descend in a double line graph. A double line graph has two axes. The **x-axis** of a double line graph shows the occurrences and the categories being compared over time, and the **y-axis** represents the scale. A **scale** is a set of numbers that represents the data and is organized into equal intervals. A double line graph must have a **title**, which provides a general overview of what is being displayed. A double line graph will also include a **key**, which represents the information, event, and situation being observed.

Let's look at an example. The first step in creating a double line graph is to provide a title for the double line graph. The title of this double line graph is 'Average Snow Fall.'

Second, draw and label the two axes: the y-axis, which is the scale with equal intervals and ranging from 0-4, and the x-axis, which is the specific category observing the continuous change in the data. The y-axis has the label of 'Inches,' and the x-axis has the label of 'Months.'

Third, draw the double lines to show the data continuously changing over the observed time period. Finally, provide a key. The key for this double line graph represents the two cities that are being compared.

Hey, did you know with a double line graph we can create and answer questions based on the data being displayed? Check out this scenario! You are in charge of planning activities for a school festival and are trying to find the best time for outdoor and indoor activities based on the temperature. Take a moment and look at the double line graph.

Our first question could be, what is being observed? The correct response is the temperature over an eight hour time period. Based on the graph, what is the highest indoor activity's temperature? The correct response is 70 degrees Fahrenheit. Great you are on your way of becoming a great data analyst! Here is another question. At what time of the day for the outdoor activities was the temperatures were below 65 degrees Fahrenheit? The correct response is 9:00 A.M. The data on this graph can be use to make decisions when planning for activities based on the temperature.

In this lesson, we defined a **double line graph** as a line graph with two lines that connect points to show a continuous change, and we explored the features, functions, and examples of a double line graph. We learned that we can use a double line graph when comparing two sets of data. Also, we learned that a double line graph has a key, two axes, a scale, double lines that can ascend or descend, and a title. Finally, this lesson showed you an example of why a double line graph is useful for recording and interpreting data in order to make decisions.

To unlock this lesson you must be a Study.com Member.

Create your account

Already a member? Log In

BackDid you know… We have over 95 college courses that prepare you to earn credit by exam that is accepted by over 2,000 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.

To learn more, visit our Earning Credit Page

Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.

You are viewing lesson
Lesson
15 in chapter 17 of the course:

Back To Course

High School Algebra I: Help and Review25 chapters | 292 lessons

- Using Tables and Graphs in the Real World 5:50
- Scatterplots and Line Graphs: Definitions and Uses 7:17
- What is a Parabola? 4:36
- Parabolas in Standard, Intercept, and Vertex Form 6:15
- Multiplying Binomials Using FOIL and the Area Method 7:26
- Multiplying Binomials Using FOIL & the Area Method: Practice Problems 5:46
- How to Factor Quadratic Equations: FOIL in Reverse 8:50
- Factoring Quadratic Equations: Polynomial Problems with a Non-1 Leading Coefficient 7:35
- Solving Quadratic Trinomials by Factoring 7:53
- How to Complete the Square 8:43
- Completing the Square Practice Problems 7:31
- How to Solve a Quadratic Equation by Factoring 7:53
- B-Value: Definition & Explanation 5:00
- Double Bar Graph: Definition & Examples 3:43
- Double Line Graph: Definition & Examples 3:34
- How to Factor the Difference of Cubes: Formula & Practice Problems
- Go to Factoring & Graphing Quadratic Equations: Help & Review

- Team Creativity in the Workplace
- Data Science for Marketing
- Individual Creativity in the Workplace
- Leadership in Action for Coaches
- Introduction to the Internet of Things
- The Renaissance Period in Music
- Fostering Team Creativity
- Logical vs. Creative Thinking in the Workplace
- Adaptive Technology & Innovation
- Building Creative Teams
- ASVAB Scores for Navy Jobs & Navy SEALs
- ASVAB Requirements
- What to Bring to NCLEX
- Average AFQT Scores
- ASVAB Test Day Preparation
- How To Pass the GED Reading Test
- What is the AFQT?

- What Is Capital Budgeting? - Techniques, Analysis & Examples
- Variance Formulas for Cost Accounting
- Painting Processes: Definition & Techniques
- Russian Revolution Propaganda: Posters & Slogans
- Technology Trends in Visual Merchandising
- Medication Issues that Require Pharmacist Intervention
- Using the Workplace as a Classroom for Leadership Development
- Ediacaran Fossils, Burgess Shale & Early Life on Earth
- Quiz & Worksheet - Mr. Van Daan in Diary of a Young Girl
- Quiz & Worksheet - Surface Area of a Pentagonal Prism
- Quiz & Worksheet - Photography in Art History
- Quiz & Worksheet - Displaying 3D Artwork
- Quiz & Worksheet - Making Baskets
- Introduction to Research Methods in Psychology Flashcards
- Clinical Assessment in Psychology Flashcards

- Financial Accounting: Tutoring Solution
- Psychology 106: Abnormal Psychology
- AP Music Theory: Homeschool Curriculum
- High School Chemistry Textbook
- Principles of Marketing Syllabus Resource & Lesson Plans
- How Living Organisms Get Energy: Homework Help
- Glencoe Earth Science Chapter 1: The Nature of Science
- Quiz & Worksheet - How to Structure Paragraphs and Sentences
- Quiz & Worksheet - What Makes People Happy?
- Quiz & Worksheet - Interference, Amnesia & State-Dependent Memory
- Quiz & Worksheet - Basic Greetings in Spanish
- Quiz & Worksheet - Using Object Pronouns in Spanish

- What Are Antibodies? - Definition, Function & Types
- Hermaphrodites in Biology: Definition & Examples
- How to Pass a Math Test
- What Are ACT Test Results by State?
- Study.com for Enterprise
- How to Earn a Micro Credential
- Algebra Math Games
- How to Use Study.com to Improve Your Grades
- How to Transfer Your Study.com Credit
- Study.com Demo for Workforce College Accelerator
- How to Prep for the NYS Earth Science Regents Exam
- Poetry Books & Activities for Kindergarten

Browse by subject