AS Level Mathematics Paper 2 · Pure Mathematics 2 practice papers
50 marks · 1h 15m. Each generated paper follows the 9709 Paper 2 · Pure Mathematics 2 format, with the same number and style of questions as the real exam, and comes with a Cambridge-style mark scheme.
The variables x and y satisfy the equation y = A bx, where A and b are constants. The graph of ln y against x is a straight line passing through the points (0.6, 0.91) and (3.5, 3.32).
Find the values of A and b, giving your answers correct to 3 significant figures.
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Answer and marking points
Marks
A = 1.51, b = 2.3
ln y = ln A + x ln b stated B1 gradient from the two points M1 ln b = 0.831 A1 intercept found and exponentiated M1 A = 1.51, b = 2.3 A1
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Question 2Structured · 6 marksA* challenge
A curve has equation y = ln xx2 for x > 0.
(a)
Find the exact coordinates of the stationary point.
The equation x3 − 7x − 4 = 0 has a root α. Use the iterative formula xn+1 = ∛(7xn + 4) with x1 = 2 to find α correct to 3 decimal places. Give the result of each iteration to 5 decimal places.
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