Mathematics · May / June 2026 · Paper 22 · Question 12
0580
As printed in the paper
The question as text
9 9 8 8 7 7 6 6 5 5 4 4 3 3 2 2 1 1 0 y x
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
12(a)[5]
Four ruled solid straight lines [5]
B1 for x = 8 In question 12 withhold 1 mark on first occurrence
B1 for y = 2 of dashed line. This should be when you first see it
B1 for x + y = 8 in part (a). Condone very good freehand, mark intention.
B2 for 2y – x = 4
or B1 for a diagonal line passing Lines can be any length. through (0, 2) or (8, 6) or a line with gradient 1 Be careful not to credit the same line twice. 2
12(b)[2]
Correct region identified y 9 8 7 6 5 4 R 3 2 1 0 1 2 3 4 5 6 7 8 9 x [2]
Allow unambiguous identification of the correct region.
B1 for a region satisfying three of Note: use the B1 diagram only if all four lines are the correct inequalities correct. If any lines are incorrect, use the guidance below. y 9 Allow maximum of one incorrect line drawn or one 8 line omitted for B1. 7 1 i.e. three of these must be correct
6 left of x = 85 above y = 2 1 4right of x + y = 8 3 1below 2y – x = 4 2 1 1 Mark R first, if no R mark unshaded region. 0 If their R (or unshaded region) spans more than one 1 2 3 4 5 6 7 8 9 x region, apply the choice rule and mark the worst. Allow unambiguous indication of shading,or SC1 for e.g. a little shading just to one side of the lines. The SC is only if there is no R and the shading is in the region shown only.
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