O-LevelMathematicsCoordinate geometry4024/11 · Oct/Nov 2019 · Q173 Marks
The diagram shows the lines x + y = 8, y = ½x, x = 0 and y = 0. The regions between the lines are labelled with letters. [Figure X.X - graph showing labelled regions A-J]
- (a)Write down the label of the region which is defined by these three inequalities. x + y < 8 y < ½x y > 0[1]
- (b)Write down all the inequalities which define region E.[2]
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
Mark scheme
Marking points from the official mark scheme (Oct/Nov 2019). The mark or mark type is shown in brackets.
- [1] G
- [2] x + y > 8 and y > ½x and x > 0
- B1 for two of x + y > 8, y > ½x, x > 0 and up to 1 incorrect or for 3 correct and 1 incorrect
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