Journal Entry

1
Journal Entry 2

• What ways can you represent data in graphical
  format? (In other words how many different type
  of graphs can you think of)
• On an ordinary line graph, is the X axis the
  vertical or horizontal edge of the graph?
• Graph the following data points using a line
  graph (2,2) (4,4) (6,6)

2
Journal Answers

• Line, Bar, Pie Chart, Scatter Plot, Radar, Area
• Horizontal

3
Graphs

• Provide a clear picture of numerical
  relationships
• Must Include
• Title What the graph is about
• Axes x is horizontal y is vertical
• Labels Explain what numbers represent
• Units Type of measurement, in parentheses, ex.
  (min)
• Numbers on Axes Scale of equal spaces
  (increments)

4
Graphs

• Two kinds of graphs
• Line Graph Shows relationship between two
  factors as they change
• Bar Graph Compare different volumes or
  quantities

5
Graphs

• Both have a vertical (Y) and horizontal (X) axes
  with a scale

6
GraphsIV Notice the following

• Line Graph
• Numbers on x axis go ON the lines
• Numbers on Y axis go ON the lines
• Plot points and connect them to make a line

• Bar Graph
• Numbers on x axis go BETWEEN the lines
• Numbers on the Y axis go ON the lines
• Make columns

7
Graphs

• Terminology
• Variable information (data) being collected
• Independent Variable the variable controlled by
  the experiment X axis
• Dependent Variable the factor being measured in
  the experiment Y axis