# Line plots review

Review the basics of lines plots and then practice creating and reading line plots.

## What are line plots?

A line plot is a way to display data along a number line.
Line plots are also called dot plots.
Below is an example of a line plot showing the distance 17 turtles traveled in an hour (we know it is 17 turtles because there are 17 dots on the line plot).
The 3 dots above 21 mean that 3 turtles traveled a distance of 21 meters in an hour.

## Graphing data on line plots

To graph data on a line plot, we put a dot (or an X) above each number in the data set. If a number appears twice in the data, we put two dots above that number.
For example, a graph of the data set 4, comma, 5, comma, 5, comma, 6 would look like this:

## Practice set 1: Reading line plots

Problem 1A
The lengths of alien arms are shown below.
How many alien arms are longer than 96 centimeters?
alien arms

Want to try more problems like this? Check out this exercise.

Problem 2A