16-01-10 1 CHANGING THE SCALE ON A GRAPH Lesson 7 INTRODUCTION To describe how changing the scale changes a line graph, we need to understand the term scale.
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CHANGING THE SCALE ON A GRAPH
Lesson 7
INTRODUCTION
To describe how changing the scale changes a line graph, we need to understand the term scale.
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SCALE
A scale is the markings on the axis of a graph. For example, the scale on the x-axis can go up by 5 (0, 5, 10, 15, etc.) or by 50 (0, 50, 100, 150, 200, etc.).
CHANGING THE SCALE ON A GRAPH TEXTBOOK P. 87 Kurt has been reading the science fiction book 20 000 Leagues Under the Sea by Jules Verne. He learned that 1 league is about 6 km. He created a table of leagues and kilometers. He used the data in the table to create a line graph.
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CHANGING THE SCALE ON A GRAPH TEXTBOOK P. 87
Leagues Kilometers 0 0
5000 30 000 10 000 60 000 15 000 90 000 20 000 120 000
CHANGING THE SCALE ON A GRAPH TEXTBOOK P. 87 A. Create a new graph by doubling the value of
each unit on the scale of the vertical axis. B. Create a new graph by doubling the value of
each unit on the scale of the vertical axis once again.
C. Compare the appearance of the original graph to that of Part A and Part B. How is the line changing as you increase the scale on the vertical axis?
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INDEPENDENT WORK
1. Workbook (p. 27)