Today we are going to construct a line graph. We are going to use data from the Victorian Air Quality Index, which measures the air quality and the amount of pollution in the air. Obviously with the Hazelwood Coal Mine fire, the air quality around the Latrobe Valley has not been great.

Look at the example of the line graph below. What do you notice is on the line graph.

Below is some data about the air quality in Morwell, Traralgon and Melbourne from the 21-2-2014.

AIR QUALITY INDEX – 21-2-2014

 12:00PM

TOWN

AQI

SUMMARY

MORWELL

679

VERY GOOD

TRARALGON

56

GOOD

MELBOURNE

20

VERY GOOD

 1:00PM

TOWN

AQI

SUMMARY

MORWELL

1037

VERY POOR

TRARALGON

61

GOOD

MELBOURNE

24

VERY GOOD

 2:00PM

TOWN

AQI

SUMMARY

MORWELL

1338

VERY POOR

TRARALGON

24

VERY GOOD

MELBOURNE

21

VERY GOOD

 3:00PM

TOWN

AQI

SUMMARY

MORWELL

1809

VERY POOR

TRARALGON

40

GOOD

MELBOURNE

30

VERY GOOD

 4:00PM

TOWN

AQI

SUMMARY

MORWELL

1407

VERY POOR

TRARALGON

156

VERY POOR

MELBOURNE

35

VERY GOOD

 AIR QUALITY INDEX RATING

VERY GOOD

GOOD

FAIR

POOR

VERY POOR

0-33

34-66

67-99

100-149

150+

  

Your graph must have the following:

  • Labelled x (time) and y (AQI) axis
  • Ruled axis
  • Equal scale on the y axis
  • Graph the lines that reflect the data (use different colours for each place)
  • Legend (key) the explains key parts of the graph
  • Graph heading

You will need to ensure you complete a rough draft in your book and then you will complete a published graph on a separate sheet of paper.