year 8 maths

544 Chapter 9 Data collection, representation and analysis
ENRICHMENT
– –
11
Which hemisphere?
11 The following line graph shows the average monthly temperature in a city.
Average temperature (°C)
40
35
30
25
20
15
10
5
0
Jan
Feb
Temperature in a year
Mar
Apr
May
June
JulyAug
Sep
Month
Oct
Nov
Dec
a Is this city in the Northern or Southern Hemisphere? Explain why.
b Is this city close to the equator or far from the equator? Explain why.
c Use a digital technology (e.g. a spreadsheet) to redraw the graph to start the 12 -month period at
July and finish in June.
d Describe how the new graph’s appearance is different from the one shown above.
e In another city, somebody graphs the temperature over a 12 -month period, as shown below.
In which hemisphere is this city likely to be? Explain your answer.
Average temperature (°C)
30
25
20
15
10
5
0
Temperature in a year
1 2 3 4 5 6 7 8 9 10 11 12
Month
Cambridge Maths NSW
Stage 4 Year 8 Second edition
ISBN 978-1-108-46627-1 © Palmer et al. 2018
Cambridge University Press
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