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Graphs

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Graphs

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    1. Graphs V. Martinez

    2. Essential Question In what ways do we use graphs to solve problems in our daily lives?

    3. Line Plot –organizes data

    4. Ages of People in an apartment building.

    5. Bar Graph A bar graph is used to compare amounts.

    6. Pictograph A pictograph uses pictures or symbols to represent an assigned amount of data. A pictograph takes the form of a bar graph.

    7. Advantages of a pictograph A pictograph is easy to read. 2. They show trends in data clearly. 3. They are fun to use.

    8. Disadvantages of a pictographs It may be difficult to find a symbol or picture to represent the data. 2. The key can be confusing to read. 3.  A pictograph can be difficult to make.

    9. Line Graph A line graph is used to show change over time. You can use a line graph to look for trends and to make predictions.

    10. Temperature Line Graph

    11. Click here to see more about line graphs http://www.mathgoodies.com/lessons/graphs/line.html

    13. Draw the “L” Box 2. Put the title. Average Yearly Rainfall l l l l l L________________________

    14. 3. Label the x and y axis Average Yearly Rainfall 10l 8 l 6 l 4 l 2 l 0 L________________________ 1995 1996 1997 1998 1999 Average Rainfall

    15. Add the data by placing dots. Average Yearly Rainfall 10l x 8 l x 6 l x 4 l 2 l x 0 L_______________________x_ 1995 1996 1997 1998 1999 Average Rainfall

    17. Draw a line graph. Temperatures In NY City Day 1 43° F Day 2 53° F Day 3 35° F Day 4 57° F Day 5 59° F Day 6 67° F

    18. Compare your graph.

    19. Use the data to make a line graph. Sam's Weight Month Weight in Kg January 49 February 54 March 61 April 69 May 73

    20. The graph is easier to read than the table. What do you notice about Sam’s weight?

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