
High School Math 2012 Common-core Algebra 1 Practice And Problem Solvingworkbook Grade 8/9
1st Edition
ISBN: 9780133185614
Author: Prentice Hall
Publisher: Prentice Hall
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 5.7, Problem 7P
Use the table below and a graphing calculator for Exercises 7 through 10.
Make a scatter plot of the data pairs (years since 1999, revenue).
Expert Solution & Answer

To determine
To make a scatter plot for the given data pairs.
Explanation of Solution
Given information:
Plot the given points on graph we get,
Chapter 5 Solutions
High School Math 2012 Common-core Algebra 1 Practice And Problem Solvingworkbook Grade 8/9
Ch. 5.1 - Determine whether each rate of change is constant....Ch. 5.1 - Determine whether each rate of change is constant....Ch. 5.1 - Determine whether each rate of change is constant....Ch. 5.1 - Find the slope of each line.Ch. 5.1 - Find the slope of each line.Ch. 5.1 - Find the slope of each line.Ch. 5.1 - Find the slope of the line that passes through...Ch. 5.1 - Find the slope of the line that passes through...Ch. 5.1 - Find the slope of the line that passes through...Ch. 5.1 - Find the slope of the line that passes through...
Ch. 5.1 - Find the slope of the line that passes through...Ch. 5.1 - Find the slope of the line that passes through...Ch. 5.1 - Find the slope of each line.Ch. 5.1 - Find the slope of each line.Ch. 5.1 - Find the slope of each line.Ch. 5.1 - Without graphing, tell whether the slope of a line...Ch. 5.1 - Without graphing, tell whether the slope of a line...Ch. 5.1 - Without graphing, tell whether the slope of a line...Ch. 5.1 - Without graphing, tell whether the slope of a line...Ch. 5.1 - State the independent variable and the dependent...Ch. 5.1 - State the independent variable and the dependent...Ch. 5.1 - State the independent variable and the dependent...Ch. 5.1 - Find the slope of the line that passes through...Ch. 5.1 - Find the slope of the line that passes through...Ch. 5.1 - Find the slope of the line that passes through...Ch. 5.1 - Find the slope of the line that passes through...Ch. 5.1 - Find the slope of the line that passes through...Ch. 5.1 - Find the slope of the line that passes through...Ch. 5.1 - Writing Explain why the slope of a horizontal line...Ch. 5.1 - Writing Describe how to draw a line that passes...Ch. 5.1 - Each pair of points lies on a line with the given...Ch. 5.1 - Each pair of points lies on a line with the given...Ch. 5.1 - Each pair of points lies on a line with the given...Ch. 5.1 - Each pair of points lies on a line with the given...Ch. 5.1 - For Exercises 15, choose the correct letter. What...Ch. 5.1 - For Exercises 15, choose the correct letter. A...Ch. 5.1 - For Exercises 15, choose the correct letter. The...Ch. 5.1 - For Exercises 15, choose the correct letter. What...Ch. 5.1 - Shawn needs to read a book that is 374 pages long....Ch. 5.1 - Robi has run the first 4 miles of a race in 30...Ch. 5.2 - Determine whether each equation represents a...Ch. 5.2 - Determine whether each equation represents a...Ch. 5.2 - Determine whether each equation represents a...Ch. 5.2 - Determine whether each equation represents a...Ch. 5.2 - Determine whether each equation represents a...Ch. 5.2 - Determine whether each equation represents a...Ch. 5.2 - Suppose y varies directly with x. Write a direct...Ch. 5.2 - Suppose y varies directly with x. Write a direct...Ch. 5.2 - Suppose y varies directly with x. Write a direct...Ch. 5.2 - Suppose y varies directly with x. Write a direct...Ch. 5.2 - Suppose y varies directly with x. Write a direct...Ch. 5.2 - Suppose y varies directly with x. Write a direct...Ch. 5.2 - Graph each direct variation equation. y=5xCh. 5.2 - Graph each direct variation equation. y=25xCh. 5.2 - Graph each direct variation equation. y=34xCh. 5.2 - An equilateral triangle is a triangle with three...Ch. 5.2 - The amount a you fill a tub varies directly with...Ch. 5.2 - For the data in each table, tell whether y varies...Ch. 5.2 - For the data in each table, tell whether y varies...Ch. 5.2 - For the data in each table, tell whether y varies...Ch. 5.2 - Suppose y varies directly with x. Write and graph...Ch. 5.2 - Suppose y varies directly with x. Write and graph...Ch. 5.2 - Suppose y varies directly with x. Write and graph...Ch. 5.2 - Tell whether the two quantities vary directly....Ch. 5.2 - Tell whether the two quantities vary directly....Ch. 5.2 - Tell whether the two quantities vary directly....Ch. 5.2 - Tell whether the two quantities vary directly....Ch. 5.2 - Tell whether the two quantities vary directly....Ch. 5.2 - Solve each exercise and enter your answer on the...Ch. 5.2 - Solve each exercise and enter your answer on the...Ch. 5.2 - Solve each exercise and enter your answer on the...Ch. 5.2 - Solve each exercise and enter your answer on the...Ch. 5.2 - The distance d a train travels varies directly...Ch. 5.3 - Find the slope and y-intercept of the graph of...Ch. 5.3 - Find the slope and y-intercept of the graph of...Ch. 5.3 - Find the slope and y-intercept of the graph of...Ch. 5.3 - Find the slope and y-intercept of the graph of...Ch. 5.3 - Find the slope and y-intercept of the graph of...Ch. 5.3 - Find the slope and y-intercept of the graph of...Ch. 5.3 - Find the slope and y-intercept of the graph of...Ch. 5.3 - Find the slope and y-intercept of the graph of...Ch. 5.3 - Find the slope and y-intercept of the graph of...Ch. 5.3 - Write an equation of a line with the given slope m...Ch. 5.3 - Write an equation of a line with the given slope m...Ch. 5.3 - Write an equation of a line with the given slope m...Ch. 5.3 - Write an equation of a line with the given slope m...Ch. 5.3 - Write an equation of a line with the given slope m...Ch. 5.3 - Write an equation of a line with the given slope m...Ch. 5.3 - Write an equation in slope-intercept form of each...Ch. 5.3 - Write an equation in slope-intercept form of each...Ch. 5.3 - Write an equation in slope-intercept form of each...Ch. 5.3 - Write an equation in slope-intercept form of the...Ch. 5.3 - Write an equation in slope-intercept form of the...Ch. 5.3 - Write an equation in slope-intercept form of the...Ch. 5.3 - Write an equation in slope-intercept form of the...Ch. 5.3 - Write an equation in slope-intercept form of the...Ch. 5.3 - Write an equation in slope-intercept form of the...Ch. 5.3 - Write an equation in slope-intercept form of the...Ch. 5.3 - Write an equation in slope-intercept form of the...Ch. 5.3 - Write an equation in slope-intercept form of the...Ch. 5.3 - Graph each equation. y=x+3Ch. 5.3 - Graph each equation. y=4x1Ch. 5.3 - Graph each equation. y=x+6Ch. 5.3 - Graph each equation. y=3x2Ch. 5.3 - Graph each equation. y=5x+1Ch. 5.3 - Graph each equation. y=7x4Ch. 5.3 - Hudson is already 40 miles away from home on his...Ch. 5.3 - When Phil started his new job, he owed the company...Ch. 5.3 - Find the slope and the y-intercept of the graph of...Ch. 5.3 - Find the slope and the y-intercept of the graph of...Ch. 5.3 - Find the slope and the y-intercept of the graph of...Ch. 5.3 - Find the slope and the y-intercept of the graph of...Ch. 5.3 - Find the slope and the y-intercept of the graph of...Ch. 5.3 - Find the slope and the y-intercept of the graph of...Ch. 5.3 - For Exercises 15, choose the correct letter. What...Ch. 5.3 - For Exercises 15, choose the correct letter. What...Ch. 5.3 - For Exercises 15, choose the correct letter. What...Ch. 5.3 - For Exercises 15, choose the correct letter. The...Ch. 5.3 - For Exercises 15, choose the correct letter....Ch. 5.3 - What is an equation of the line that passes...Ch. 5.4 - Write an equation of the line in point-slope form...Ch. 5.4 - Write an equation of the line in point-slope form...Ch. 5.4 - Write an equation of the line in point-slope form...Ch. 5.4 - Write an equation of the line in point-slope form...Ch. 5.4 - Graph each equation. y2=2(x+3)Ch. 5.4 - Graph each equation. y+3=2(x+1)Ch. 5.4 - Graph each equation. y+1=35(x+5)Ch. 5.4 - Write an equation in point-slope form for each...Ch. 5.4 - Write an equation in point-slope form for each...Ch. 5.4 - Write an equation in point-slope form for each...Ch. 5.4 - Write an equation in point-slope form of the line...Ch. 5.4 - Write an equation in point-slope form of the line...Ch. 5.4 - Write an equation in point-slope form of the line...Ch. 5.4 - Open-Ended Write an equation of a line that has a...Ch. 5.4 - Model the data in each table with a linear...Ch. 5.4 - Model the data in each table with a linear...Ch. 5.4 - Graph the line that passes through the given point...Ch. 5.4 - Graph the line that passes through the given point...Ch. 5.4 - Graph the line that passes through the given point...Ch. 5.4 - Writing Describe what you know about the graph of...Ch. 5.4 - Writing Describe how you would use the point-slope...Ch. 5.4 - Writing Describe how linear data given in a table...Ch. 5.4 - A sign says that 3 tickets cost $ 22.50 and that 7...Ch. 5.4 - For Exercises 15, choose the correct letter. Which...Ch. 5.4 - For Exercises 15, choose the correct letter. Which...Ch. 5.4 - For Exercises 15, choose the correct letter. Which...Ch. 5.4 - For Exercises 15, choose the correct letter. Which...Ch. 5.4 - For Exercises 15, choose the correct letter. The...Ch. 5.4 - The table shows the cost of a large cheese pizza...Ch. 5.5 - Find the x- and y-intercepts of the graph of each...Ch. 5.5 - Find the x- and y-intercepts of the graph of each...Ch. 5.5 - Find the x- and y-intercepts of the graph of each...Ch. 5.5 - Find the x- and y-intercepts of the graph of each...Ch. 5.5 - Find the x- and y-intercepts of the graph of each...Ch. 5.5 - Find the x- and y-intercepts of the graph of each...Ch. 5.5 - Draw a line with the given intercepts....Ch. 5.5 - Draw a line with the given intercepts....Ch. 5.5 - Draw a line with the given intercepts....Ch. 5.5 - Graph each equation using x- and y-intercepts....Ch. 5.5 - Graph each equation using x- and y-intercepts....Ch. 5.5 - Graph each equation using x- and y-intercepts....Ch. 5.5 - For each equation, tell whether its graph is a...Ch. 5.5 - For each equation, tell whether its graph is a...Ch. 5.5 - For each equation, tell whether its graph is a...Ch. 5.5 - For each equation, tell whether its graph is a...Ch. 5.5 - Graph each equation. y=6Ch. 5.5 - Graph each equation. x=2Ch. 5.5 - Graph each equation. y=7Ch. 5.5 - Write each equation in standard form using...Ch. 5.5 - Write each equation in standard form using...Ch. 5.5 - Write each equation in standard form using...Ch. 5.5 - Write each equation in standard form using...Ch. 5.5 - Write each equation in standard form using...Ch. 5.5 - Write each equation in standard form using...Ch. 5.5 - Write each equation in standard form using...Ch. 5.5 - You have only nickels and dimes in your piggy...Ch. 5.5 - For each graph, find the x- and y-intercepts. Then...Ch. 5.5 - For each graph, find the x- and y-intercepts. Then...Ch. 5.5 - Find the x- and y-intercepts of the line that...Ch. 5.5 - Find the x- and y-intercepts of the line that...Ch. 5.5 - Find the x- and y-intercepts of the line that...Ch. 5.5 - For Exercises 14, choose the correct letter. What...Ch. 5.5 - For Exercises 14, choose the correct letter. Which...Ch. 5.5 - For Exercises 14, choose the correct letter. What...Ch. 5.5 - For Exercises 14, choose the correct letter....Ch. 5.5 - The grocery store is selling eggs for $ 2 per...Ch. 5.6 - Write an equation of the line that passes through...Ch. 5.6 - Write an equation of the line that passes through...Ch. 5.6 - Write an equation of the line that passes through...Ch. 5.6 - Write an equation of the line that passes through...Ch. 5.6 - Write an equation of the line that passes through...Ch. 5.6 - Write an equation of the line that passes through...Ch. 5.6 - Determine whether the graphs of the given...Ch. 5.6 - Determine whether the graphs of the given...Ch. 5.6 - Determine whether the graphs of the given...Ch. 5.6 - Determine whether the graphs of the given...Ch. 5.6 - Determine whether the graphs of the given...Ch. 5.6 - Determine whether the graphs of the given...Ch. 5.6 - Determine whether each statement is always,...Ch. 5.6 - The slopes of vertical lines and horizontal lines...Ch. 5.6 - A vertical line is perpendicular to the x-axis.Ch. 5.6 - Write an equation of the line that passes through...Ch. 5.6 - Write an equation of the line that passes through...Ch. 5.6 - Write an equation of the line that passes through...Ch. 5.6 - Write an equation of the line that passes through...Ch. 5.6 - Write an equation of the line that passes through...Ch. 5.6 - Write an equation of the line that passes through...Ch. 5.6 - Open-Ended Write the equations of three lines...Ch. 5.6 - Open-Ended Write the equations of two lines whose...Ch. 5.6 - What is the slope of a line that is perpendicular...Ch. 5.6 - What is the slope of a line that is perpendicular...Ch. 5.6 - What is the slope of a line that is parallel to...Ch. 5.6 - What is the slope of a line that is perpendicular...Ch. 5.6 - On a map, Sandusky St. passes through coordinates...Ch. 5.6 - Writing Explain how you can determine if the...Ch. 5.6 - For Exercises 15, choose the correct letter. Which...Ch. 5.6 - For Exercises 15, choose the correct letter. Which...Ch. 5.6 - For Exercises 15, choose the correct letter. Which...Ch. 5.6 - For Exercises 15, choose the correct letter. Which...Ch. 5.6 - For Exercises 15, choose the correct letter....Ch. 5.6 - A city designer is drawing the road map for a new...Ch. 5.7 - For each table, make a scatter plot of the data....Ch. 5.7 - For each table, make a scatter plot of the data....Ch. 5.7 - Use the table below and a graphing calculator for...Ch. 5.7 - Use the table below and a graphing calculator for...Ch. 5.7 - Use the table below and a graphing calculator for...Ch. 5.7 - Use the table below and a graphing calculator for...Ch. 5.7 - Use the table below and a graphing calculator for...Ch. 5.7 - Use the table below and a graphing calculator for...Ch. 5.7 - Use the table below and a graphing calculator for...Ch. 5.7 - Use the table below and a graphing calculator for...Ch. 5.7 - In each situation, tell whether a correlation is...Ch. 5.7 - In each situation, tell whether a correlation is...Ch. 5.7 - In each situation, tell whether a correlation is...Ch. 5.7 - In each situation, tell whether a correlation is...Ch. 5.7 - Open-Ended Describe a real world situation that...Ch. 5.7 - Writing Describe the difference between...Ch. 5.7 - Writing Describe how the slope of a line relates...Ch. 5.7 - For Exercises 1-5, choose the correct letter. For...Ch. 5.7 - For Exercises 1-5, choose the correct letter. When...Ch. 5.7 - For Exercises 1-5, choose the correct letter. Mr....Ch. 5.7 - For Exercises 15, choose the correct letter. A...Ch. 5.7 - What type of correlation is represented by the...Ch. 5.7 - Use the scatter plot to answer the following...Ch. 5.8 - Describe how each graph is related to the graph of...Ch. 5.8 - Describe how each graph is related to the graph of...Ch. 5.8 - Describe how each graph is related to the graph of...Ch. 5.8 - Describe how each graph is related to the graph of...Ch. 5.8 - Graph each function by translating y=x. y=x+3Ch. 5.8 - Graph each function by translating y=x. y=x2Ch. 5.8 - Graph each function by translating y=x. y=x1.5Ch. 5.8 - Describe how each graph is related to the graph of...Ch. 5.8 - Write an equation for each translation of y=x. 1...Ch. 5.8 - Write an equation for each translation of y=x. 18...Ch. 5.8 - Graph each function by translating y=x. y=x+6Ch. 5.8 - Graph each function by translating y=x. y=x5Ch. 5.8 - Graph each function by translating y=x. y=x+3.2Ch. 5.8 - Write an equation for each translation of y=x....Ch. 5.8 - Write an equation for each translation of y=x....Ch. 5.8 - Write an equation for each translation of y=x....Ch. 5.8 - At the right is the graph of y=x. Graph each...Ch. 5.8 - At the right is the graph of y=x. Graph each...Ch. 5.8 - The table at the right shows the dosage of a...Ch. 5.8 - Reasoning Examine the expressions...Ch. 5.8 - Writing Can the absolute value of a number equal a...Ch. 5.8 - Graph each translation of y=x. Describe how the...Ch. 5.8 - Graph each translation of y=x. Describe how the...Ch. 5.8 - For Exercises 16, choose the correct letter. Which...Ch. 5.8 - For Exercises 16, choose the correct letter. How...Ch. 5.8 - For Exercises 16, choose the correct letter. What...Ch. 5.8 - For Exercises 16, choose the correct letter. Which...Ch. 5.8 - For Exercises 16, choose the correct letter. Which...Ch. 5.8 - For Exercises 16, choose the correct letter. What...Ch. 5.8 - Let f(x)=x3+1 a. What is the graph of the...
Additional Math Textbook Solutions
Find more solutions based on key concepts
A student has to sell 2 books from a collection of 6 math, 7 science, and 4 economics books. How many choices a...
A First Course in Probability (10th Edition)
Fill in each blanks so that the resulting statement is true. Any set of ordered pairs is called a/an _______. T...
College Algebra (7th Edition)
The null hypothesis, alternative hypothesis, test statistic, P-value and state the conclusion. To test: Whether...
Elementary Statistics
In Exercises 1–18, find dy/dx.
5.
University Calculus: Early Transcendentals (4th Edition)
Coke versus Pepsi (Example 5) Suppose you are testing someone to see whether she or he can tell Coke from Pepsi...
Introductory Statistics
Identify f as being linear, quadratic, or neither. If f is quadratic, identify the leading coefficient a and ...
College Algebra with Modeling & Visualization (5th Edition)
Knowledge Booster
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.Similar questions
- The 173 acellus.com StudentFunctions inter ooks 24-25/08 R Mastery Connect ac ?ClassiD-952638111# Introduction - Surface Area of Composite Figures 3 cm 3 cm 8 cm 8 cm Find the surface area of the composite figure. 2 SA = [?] cm² 7 cm REMEMBER! Exclude areas where complex shapes touch. 7 cm 12 cm 10 cm might ©2003-2025 International Academy of Science. All Rights Reserved. Enterarrow_forwardYou are given a plane Π in R3 defined by two vectors, p1 and p2, and a subspace W in R3 spanned by twovectors, w1 and w2. Your task is to project the plane Π onto the subspace W.First, answer the question of what the projection matrix is that projects onto the subspace W and how toapply it to find the desired projection. Second, approach the task in a different way by using the Gram-Schmidtmethod to find an orthonormal basis for subspace W, before then using the resulting basis vectors for theprojection. Last, compare the results obtained from both methodsarrow_forwardPlane II is spanned by the vectors: - (2) · P² - (4) P1=2 P21 3 Subspace W is spanned by the vectors: 2 W1 - (9) · 1 W2 1 = (³)arrow_forward
- show that v3 = (−√3, −3, 3)⊤ is an eigenvector of M3 . Also here find the correspondingeigenvalue λ3 . Just from looking at M3 and its components, can you say something about the remaining twoeigenvalues? If so, what would you say? find v42 so that v4 = ( 2/5, v42, 1)⊤ is an eigenvector of M4 with corresp. eigenvalue λ4 = 45arrow_forwardChapter 4 Quiz 2 As always, show your work. 1) FindΘgivencscΘ=1.045. 2) Find Θ given sec Θ = 4.213. 3) Find Θ given cot Θ = 0.579. Solve the following three right triangles. B 21.0 34.6° ca 52.5 4)c 26° 5) A b 6) B 84.0 a 42° barrow_forwardQ1: A: Let M and N be two subspace of finite dimension linear space X, show that if M = N then dim M = dim N but the converse need not to be true. B: Let A and B two balanced subsets of a linear space X, show that whether An B and AUB are balanced sets or nor. Q2: Answer only two A:Let M be a subset of a linear space X, show that M is a hyperplane of X iff there exists ƒ€ X'/{0} and a € F such that M = (x = x/f&x) = x}. fe B:Show that every two norms on finite dimension linear space are equivalent C: Let f be a linear function from a normed space X in to a normed space Y, show that continuous at x, E X iff for any sequence (x) in X converge to Xo then the sequence (f(x)) converge to (f(x)) in Y. Q3: A:Let M be a closed subspace of a normed space X, constract a linear space X/M as normed space B: Let A be a finite dimension subspace of a Banach space X, show that A is closed. C: Show that every finite dimension normed space is Banach space.arrow_forward
- • Plane II is spanned by the vectors: P12 P2 = 1 • Subspace W is spanned by the vectors: W₁ = -- () · 2 1 W2 = 0arrow_forwardThree streams - Stream A, Stream B, and Stream C - flow into a lake. The flow rates of these streams are not yet known and thus to be found. The combined water inflow from the streams is 300 m³/h. The rate of Stream A is three times the combined rates of Stream B and Stream C. The rate of Stream B is 50 m³/h less than half of the difference between the rates of Stream A and Stream C. Find the flow rates of the three streams by setting up an equation system Ax = b and solving it for x. Provide the values of A and b. Assuming that you get to an upper-triangular matrix U using an elimination matrix E such that U = E A, provide also the components of E.arrow_forwarddent Application X GA spinner is divided into five cox | + 9/26583471/4081d162951bfdf39e254aa2151384b7 A spinner is divided into five colored sections that are not of equal size: red, blue, green, yellow, and purple. The spinner is spun several times, and the results are recorded below: Spinner Results Color Frequency Red 5 Blue 11 Green 18 Yellow 5 Purple 7 Based on these results, express the probability that the next spin will land on purple as a fraction in simplest form. Answer Attempt 1 out of 2 Submit Answer 0 Feb 12 10:11 Oarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Algebra and Trigonometry (6th Edition)AlgebraISBN:9780134463216Author:Robert F. BlitzerPublisher:PEARSONContemporary Abstract AlgebraAlgebraISBN:9781305657960Author:Joseph GallianPublisher:Cengage LearningLinear Algebra: A Modern IntroductionAlgebraISBN:9781285463247Author:David PoolePublisher:Cengage Learning
- Algebra And Trigonometry (11th Edition)AlgebraISBN:9780135163078Author:Michael SullivanPublisher:PEARSONIntroduction to Linear Algebra, Fifth EditionAlgebraISBN:9780980232776Author:Gilbert StrangPublisher:Wellesley-Cambridge PressCollege Algebra (Collegiate Math)AlgebraISBN:9780077836344Author:Julie Miller, Donna GerkenPublisher:McGraw-Hill Education

Algebra and Trigonometry (6th Edition)
Algebra
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:PEARSON

Contemporary Abstract Algebra
Algebra
ISBN:9781305657960
Author:Joseph Gallian
Publisher:Cengage Learning

Linear Algebra: A Modern Introduction
Algebra
ISBN:9781285463247
Author:David Poole
Publisher:Cengage Learning

Algebra And Trigonometry (11th Edition)
Algebra
ISBN:9780135163078
Author:Michael Sullivan
Publisher:PEARSON

Introduction to Linear Algebra, Fifth Edition
Algebra
ISBN:9780980232776
Author:Gilbert Strang
Publisher:Wellesley-Cambridge Press

College Algebra (Collegiate Math)
Algebra
ISBN:9780077836344
Author:Julie Miller, Donna Gerken
Publisher:McGraw-Hill Education
How to make Frequency Distribution Table / Tally Marks and Frequency Distribution Table; Author: Reenu Math;https://www.youtube.com/watch?v=i_A6RiE8tLE;License: Standard YouTube License, CC-BY
Frequency distribution table in statistics; Author: Math and Science;https://www.youtube.com/watch?v=T7KYO76DoOE;License: Standard YouTube License, CC-BY
Frequency Distribution Table for Grouped/Continuous data | Math Dot Com; Author: Maths dotcom;https://www.youtube.com/watch?v=ErnccbXQOPY;License: Standard Youtube License