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O-LevelMathematicsCoordinate geometry4024/11 · Oct/Nov 2020 · Q163 Marks

In the diagram, OABC is a parallelogram. The equation of the line CB is _y = x+2.

  1. (a)The region inside the parallelogram is defined by four inequalities. One of these is y<x+2. Write down the other three inequalities.[2]
  2. (b)Calculate the area of parallelogram OABС.[1]

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Mark scheme

Marking points from the official mark scheme (Oct/Nov 2020). The mark or mark type is shown in brackets.

  1. [2] x > 0 and x < 4 and y >x, oe
  2. B1 for two of x > 0, x < 4, y > x, oe
  3. If 0 scored, SC1 for the equations of three boundary lines, soi
  4. [1] 8

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About this question

Topic
Coordinate geometry, O-Level Mathematics (syllabus 4024). Structured question, 3 marks.
Source
O-Level Mathematics, Oct/Nov 2020 Paper 1 Variant 1, question 16.

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