Mathematics (AS & A Level) · May / June 2017 · Paper 23 · Question 5
9709
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x ln y O 0.6, 1.81 1.4, 1.39 The variables x and y satisfy the equation y = K a2x , where K and a are constants. The graph of ln y against x is a straight line passing through the points 0.6, 1.81 and 1.4, 1.39 , as shown in the diagram. Find the values of K and a correct to 2 significant figures. [6]
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