Mathematics 0580 · IGCSE · Inequalities

Inequalities — practice question

A coordinate grid is displayed, together with a straight line labelled $2x + y = 6$.

(main)[4]

Shade away the regions that are not wanted on the grid, then find and label the region $R$ that satisfies the inequalities $y \leq 5$, $2x + y \geq 6$, $y \geq x + 1$.

Worked solution & mark scheme

This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The lines $y = 5$ and $y = x + 1$ are ruled correctly” …

Full mark scheme, point by point
Step-by-step worked solution
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