O-LevelMathematicsAlgebra and graphs4024/12 · Oct/Nov 2018 · Q163 Marks
Find the possible values of x, given that x is an integer and 15 < 2x – 3 < 22 .
- Find the possible values of x, given that x is an integer and 15 < 2x – 3 < 22 .[3]
Mark scheme
Marking points from the official mark scheme (Oct/Nov 2018). The mark or mark type is shown in brackets.
- [3] 10 and 11 and 12
- B2 for 2 correct and no extras; or for 3 correct and one extra
- OR
- B1 for x < 12.5
- and B1 for x > 9 oe
- OR
- SC1 for both x = 9 and x = 12.5
- or for both 9 > x and x > 12.5
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