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Make and interpret line graphs Objective Make and interpret line graphs Example 2-2e

A visual display of data Vocabulary Graph A visual display of data Example 2-2e

The scale of numbers written up from the lower left corner Vocabulary Vertical axis The scale of numbers written up from the lower left corner Example 2-2e

The categories listed along the bottom of the graph Vocabulary Horizontal axis The categories listed along the bottom of the graph Example 2-2e

A visual display that shows how data changes over a period of time Vocabulary Line graph A visual display that shows how data changes over a period of time Example 2-2e

Example 1 Make and Interpret a Line Graph B Example 1 Make and Interpret a Line Graph Lesson 2 Contents

Water Consumed per Day (billion gallons) 100 1995 94 1990 92 1985 1980 96 1975 87 1970 77 1965 61 1960 Water Consumed per Day (billion gallons) Year U.S. Water Consumption Source: U.S. Census Bureau WATER USE Make a line graph of the data at the right. Decide on a scale and interval Find the largest number Find the smallest number 100 61 The intervals must include these 2 numbers 1/1 Example 2-2a

Start with 0 in the lower left corner B Largest 100 Smallest 61 Start with 0 in the lower left corner Remember: Label lines not spaces We can use 20 for our intervals Since 100 is the largest number, add one more line 1/1 Example 2-2b

Water Consumed per Day (billion gallons) Label the horizontal axis which is the categories 100 1995 94 1990 92 1985 1980 96 1975 87 1970 77 1965 61 1960 Water Consumed per Day (billion gallons) Year U.S. Water Consumption Source: U.S. Census Bureau 1/1 Example 2-2b

Water Consumed per Day (billion gallons) Label the vertical axis which is the intervals 100 94 92 96 87 77 61 Water Consumed per Day (billion gallons) 1/1 Example 2-2b

Water Consumed per Day (billion gallons) Give the graph a title 100 1995 94 1990 92 1985 1980 96 1975 87 1970 77 1965 61 1960 Water Consumed per Day (billion gallons) Year U.S. Water Consumption Source: U.S. Census Bureau 1/1 Example 2-2b

Plot data by putting a dot on the vertical line 100 1995 94 1990 92 1985 1980 96 1975 87 1970 77 1965 61 1960 Water Consumed Year 1/1 Example 2-2c

Connect the dots to make the line B Answer: Connect the dots to make the line 1/1 Example 2-2c

Total Snowfall (inches) B SNOWFALL Make a line graph of the data below. Yearly Snowfall Year Total Snowfall (inches) 1997 23 1998 20 1999 18 2000 2001 17 2002 24 1/1 Example 2-2d

B * Answer 1/1 Example 2-2e

B Assignment Lesson 2:2B Line Graphs 4 and 11 - 14 All End of Lesson 2