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Read and Interpret Line Graphs

In this worksheet, students will read and interpret information in line graphs.

'Read and Interpret Line Graphs' worksheet

Key stage:  KS 2

Year:  Year 4 Maths worksheets

Curriculum topic:   Statistics

Curriculum subtopic:   Compare Data Using Charts and Graphs

Difficulty level:  

Worksheet Overview

In this activity, we're going to be learning how to read and interpret information presented in a line graph.


The following line graph shows the temperature of someone over time.

We can see that the horizontal line represents the time (x-axis) and the vertical line represents the temperature in Fahrenheit ºF  (y-axis).

The labels on the vertical and horizontal lines are known as legends (they tell us what the information is representing).

The title tells us what the graph is representing.


          A line graph showing body temperature over time (minutes)

line graph


Let's have a look at a question using this line graph.



What was the person's temperature after 2 minutes?


The x-axis starts at 0 - this is representing time in this graph.

In this graph, the y-axis starts at 97ºF

First, we travel along the x-axis to 2 minutes and then read up to the graph line (there is a black dot here).

From here, we draw a line across from the 2 minute dot to find the temperature, which is 98ºF



The temperature after 2 minutes is 98ºF


Top Tips:

Read the questions carefully.

Look at the scale on each graph carefully.

Note that this graph shows temperatures in Fahrenheit ºF rather than the more commonly used Celsius ºC


Interestingly, normal body temperature in Fahrenheit is about 98º, so the person whose temperature is being recorded above must be feeling pretty poorly!


ill girl in bed


Let's try some questions now.

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