1. Graphs
By: Tyler, Jatan

2. Rules of XY-Coordinate Graph
• Ordered pair is written as (x, y)
• First number of the ordered pair is
called the x- coordinate (the horizontal
axis)
• Second number of the ordered pair is
the y- coordinate (the vertical axis)
• Origin is represented as (0, 0)

3. X and Y Coordinate Graph Ex.
1 2 3 4
x-intercept y-intercept
y = 2x + 4
y
x
2

4. A Complete Graph
• All graphs should be neat, easy to read
and be constructed with a straight edge
• Units along the axes are clearly labled
• The axes are labeled with words
• Must have a title
• Must have equal intervals
• Needs a key or a legend

5. Stem and Leaf Plot
• The stem is the part that represents the
leading digit of the number
• The leaf represents the other digits after
the leading digit

6. Stem and Leaf Plot Ex.
Stem Leaf
1 2,3,4,8,8
2 3,7,8,9,9,9
3 1,1,2,3,3,5,7,9
4 1,2,5,7,8,9
5 1,8,9
6 1,2,8,9
7 1,5,9,9

7. Box and Whisker Plot
• Box and Whisker Plots are divided into
quartiles
• The lower half of the set of numbers is
the lower quartile
• The upper half of the set of numbers is
called the upper quartile
• To find the quartiles the numbers have
to be arranged from least to greatest

8. Box and Whisker Plot Ex.
QuickTime™anda
TIFF(Uncompressed)decompressor
areneededtoseethispicture.

9. Line Plot
• A line plot is used to show amounts or
choices easily.

10. Example of line plot