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O-LevelAdditional MathematicsSimultaneous equations4037/12 · May/June 2010 · Q15 Marks

Find the coordinates of the points of intersection of the curve y² + y = 10x - 8x² and the line y + 4x + 1 = 0.

(a)Find the coordinates of the points of intersection of the curve y² + y = 10x - 8x² and the line y + 4x + 1 = 0.[5]

Mark scheme

Marking points from the official mark scheme (May/June 2010). The mark or mark type is shown in brackets.

M1 for attempt to get an equat variable.
M1 for attempt to get 2 or 3 quadratic = 0
DM1 for attempt to solve
A1,A1 for each pair of values

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About this question

Topic: Simultaneous equations, O-Level Additional Mathematics (syllabus 4037). Structured question, 5 marks.
Source: O-Level Additional Mathematics, May/June 2010 Paper 1 Variant 2, question 1.

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