Graphing Notes

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Graphing Notes
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GRAPHING NOTES

• GRAPHS COME IN SEVERAL STYLES-
• PIE, LINE, BAR, and SCATTER.
• Pie Graphs are used for percentages or to show
  the parts that make up a whole.
• Bar Graphs are used to compare pairs or groups
  over time. Ex) Grades in mult. classes over
  years.
• Line graphs are often used to show continual
  changes over a period of time.

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Percentage of Ingredients Used in a Sausage and
Mushroom Pizza
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Percentage of Fruit Sold in One Day at a Market
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Cell Phone Use in Anytowne 1996 to 2002
Year
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There are also graphs calledscatter plots

• - A type of line graph that uses horizontal and
  vertical axes to plot data points.
• Scatter plots show how much one variable is
  affected by another.
• The relationship between two variables is called
  their correlation

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Scatter Plots

• Data points in a straight line going from the
  origin out to high x- and y-values positive
  correlation.
• Line from a high-value on the y-axis down to a
  high-value on the x-axis, the variables have a
  negative correlation.

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If you cannot connect your data points in a
straight line
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GRAPHING RULES (Copy onto the back of your note
outline)

• 1. ALL GRAPHS MUST HAVE A TITLE.
• 2. BOTH X Y AXIS MUST BE IDENTIFIED.
• 3. A KEY MUST BE GIVEN FOR EACH COLOR.
• 4. EACH AXIS MUST BE GIVEN A SCALE.
• SCALES and GRAPHED POINTS (LINES) MAY BE DONE IN
  PENCIL.
• 6. USE A RULER FOR ALL LINES !
• 7. LABELS MUST BE IN INK,
• NEATNESS COUNTS!

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LINE GRAPH
WHATS WRONG WITH THIS GRAPH? CHECK THE
NOTES! 1. 2. 3.
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BAR GRAPH

• Whats wrong with this graph?
• Check your rules
• 1.
• 2.
• 3.

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GRAPHING RULES

• 1. ALL GRAPHS MUST HAVE A TITLE.
• 2. BOTH X Y AXIS MUST BE IDENTIFIED.
• 3. A KEY MUST BE GIVEN FOR EACH COLOR.
• 4. EACH AXIS MUST BE GIVEN A SCALE.
• SCALES and GRAPHED POINTS (LINES) MAY BE DONE IN
  PENCIL.
• ALWAYS USE A RULER
• 7. LABELS MUST BE IN INK,
• NEATNESS COUNTS!

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Create A Graph Website
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Try it on your own

• GRAPHING TURKEYS
• Read the directions and complete the graphing
  exercise.
• - We will finish tomorrow in class if not
  finished today.