Edexcel IGCSE Math B 3.J linear inequalities

Practise linear-inequality questions by solving algebraically, drawing boundary lines and shading the region that satisfies all conditions.

Exam points

Solve linear inequalities such as 5(2-q) 4 with correct sign direction.
Draw boundary lines and shade the region satisfying several inequalities.
Label the required region clearly after testing which side of each line is valid.

[Maximum number: 2]

The nth term of a sequence is $u_{n}$ where $u_{n}=25-2 n$

Find the greatest value of n for which $u_n > n$ .

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