Higher January 2022 Paper 1R Q1

EdexcelHigherCurrent spec3 marksLinear Inequalities

1 \(n\) is an integer.

(a) Write down all the values of \(n\) such that \(-2 \leqslant n \lt 3\) (2)

(b) On the number line, represent the inequality \(y \leqslant 1\) (1)

Number line marked from -3 to 3 with an arrow labelled y

Mark scheme (a)

Scheme	Marks
\(-2, -1, 0, 1, 2\)	B2
	(2)

Notes

B2: for \(-2, -1, 0, 1, 2\) with no additions or repeats
(B1 for 4 of \(-2, -1, 0, 1, 2\) with no additions or repeats
or
for 6 values with no more than one incorrect value e.g. all of \(-2, -1, 0, 1, 2, 3\)
or
for 5 values with one error)

Scheme	Marks
Answer: Closed circle at \(x = 1\) and a line with an arrow to the left	B1
	(1)
	(3 marks)