Mathematics 0580 · IGCSE · Inequalities

Inequalities — practice question

(a)[2]

Find every positive integer that satisfies the inequality $3n - 8 > 5n - 15$.

(b(i))[3]

State the three inequalities.

(b(ii))[2]

Write down the greatest value of $3x + y$ in the region $R$ for integers $x$ and $y$.

Worked solution & mark scheme

This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The integers are 1, 2, 3.” …