4MA0 Higher January 2013 Paper 4 Q13

EdexcelHigherOld spec3 marksLinear Inequalities

Grid with x from −4 to 6 and y from 0 to 4; the rectangle with x from −2 to 4 and y from 1 to 3 is shaded

Write down inequalities to fully define the shaded region.

(3)

Mark scheme

Scheme	Marks
\(-2 \leqslant x \leqslant 4\), \(1 \leqslant y \leqslant 3\) or \(x \geqslant -2\), \(x \leqslant 4\), \(y \geqslant 1\), \(y \leqslant 3\)	B3
	(3)

Notes

B3: B2 for 3 correct inequalities
B1 for 2 correct inequalities
(Treat double-ended inequalities as two separate inequalities)
Accept \(\lt\) and \(\gt\) throughout