O-LevelMathematicsAlgebra and graphs4024/12 · Oct/Nov 2015 · Q32 Marks
Solve a problem for which the answer is 12.
- Solve a problem for which the answer is 12.[2]
Mark scheme
Marking points from the official mark scheme (Oct/Nov 2015). The mark or mark type is shown in brackets.
- [2*] (°) 12 WWW
- B1 for “k” = (±) 6, from y = “k”√x
- or M1 for 18 × √4 = y × √9 oe
- or M1 for (their k) × √4 oe provided y = "k"√x used
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