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**Unformatted text preview: **(1000s of years) 0 1 2 3 4 5 6 7 8 9 10 12 15 17 Amount of C14 (cpm/g) b) Sketch a graph using graph paper. c) There are two samples of wood. One was taken from a fresh tree and the other from Stonehenge and is 4000 years old. How much Carbon 14 does each sample contain? (Answer in cpms) Use the graph and the table above to answer the questions below. Check your answer by using the given equation. d) How long does it take for the amounts of Carbon 14 in each sample to be halved? e) Charcoal from the famous Lascaux Cave in France gives a count of 2.34 cpm. Estimate the date of formation of the charcoal and give a date to the paintings found in the cave. i) x f ( x ) 0 10.5 1 12.7 2 18.9 3 36.7 ii) x f ( x ) 0 27 2 24 4 21 6 18 iii) x f ( x ) -1 50.2 0 30.12 1 18.072 2 10.8432...

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