|
A line graph is a graph that connects
points to show how data changes over time. |
|
How can you use a
line graph? |
|
You can use a
line graph to show how data changes over time. |
- Each point represents an item of data.
- The height of the point represents the value of
the data.
- The time is shown by how far to the right the
point is.
|
|
 |
|
1.
It is easy to read.
|
2.
A
broken scale
can be used when the data
starts at a large number.
|
3. They show
specific values
of data,
so if you are given one variable
the other can easily be determined.
|
4. They show
patterns in data
clearly,
meaning that they visibly show how one
variable is affected by the other as it
increases or decreases.
|
5. They enable
the viewer to make
predictions
about the results of data.
|
|
 |
|
1.
It can only
be used to show data over
time. |
2. You can
change the way the data of a line
graph appears, by not
using consistent
scales on the axis. |
 |
Remember:
A
line
graph has both advantages and disadvantages when
using them.
|
Let's Practice!
click
here
|
