Test 1: The graph below shows the average monthly change in the prices of three metals during 2014. Summarize the information by selecting and reporting the main features and make comparisons where relevant.

The line graph provides information about the percentage of price

change

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monthly of three metals,namely copper,nickel ,and zinc, in 2014.

Overall

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, it can be seen that the three illustrate several fluctuations during the time,which pricing for all plateaued for 3 months consecutively from July to September.

According to

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the diagram, nickel's price had a higher proportion of value variation rather than the others in the early year,

whereas

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the two revealed a slight shift in transaction value. In the final, all three show an upward trend after a gradual drop in October. Regarding nickel's cost

change

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in the first half of the year, it considerably declined by 9%,reaching a trough at -3% in June

as well as

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representing a gradual increase

by

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of

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2% in the following month. It

also

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displays a broadly similar pattern in copper's cost

change

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,varied by approximately 2.5% during the 6 months.

Additionally

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, one noticeable feature of the data is that prices' changing between July and September remain steady with nickels accounting for the largest percentage

change

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of the total.