Mathematics (AS & A Level) · Oct / Nov 2021 · Paper 21 · Question 3
9709
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ln x y O 1.03, 6.36 2.58, 9.00 The variables x and y satisfy the equation ay = kx, where a and k are constants. The graph of y against ln x is a straight line passing through the points 1.03, 6.36 and 2.58, 9.00 , as shown in the diagram. Find the values of a and k, giving each value correct to 2 significant figures. [5]
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