Line & Bar Graphs
• To understand when to use line & bar graphs
• To understand how to create line & bar graphs
• Frameworks: 10.D.1
A visual representation of a set of data
Why do we put numbers in a graph?
Which graph to choose?
Chart Type Description
Column Compares values from different categories.
Line Compares values from different categories. Often used to
show trends and changes over time.
Pie Compares relative values of different categories to the
Bar Compares values from different categories.
Area Compares values from different categories. Similar to the
line chart except that areas under the lines contain a fill
XY (Scatter) Shows the patterns or relationship between 2 or more sets
of values. Often used in scientific studies and statistical
X axis is often date or
time, while the y axis
is the value being
Some line charts
compare 3 or 4
values being tracked.
The count of x
marks above each
category tells you
the number of items
in that category.