O-LevelMathematicsCoordinate geometry4024/12 · May/June 2014 · Q153 Marks
[Figure 15.1]
- (a)Find the gradient of the line L.[1]
- (b)The shaded region on the diagram is defined by three inequalities. One of these is x+y≤4. Write down the other two inequalities.[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 (May/June 2014). The mark or mark type is shown in brackets.
- [1] 0.5
- [2] x ≥ 1 y ≥ 0.5x + 1 oe
- [2] FT their gradient in y = mx + 1
- [2] B1 for one correct
- [2] Or B1 for both x = 1 and y = 0.5x + 1 soi
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