AQA GCSE Mathematics · 8300
Specification A22 · Paper 1, Paper 2, Paper 3
- Revise: Graphical Inequalities and Shaded Regions
A coordinate pair substituted into an inequality to decide which side of its boundary contains the solutions.
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GCSE Mathematics · key term
A coordinate substituted into an inequality to determine which side of its boundary contains the solutions.
Used by AQA, Edexcel and OCR
Specification A22 · Paper 1, Paper 2, Paper 3
A coordinate pair substituted into an inequality to decide which side of its boundary contains the solutions.
Specification A22 · Paper 1, Paper 2, Paper 3
A point chosen away from a boundary line and substituted into an inequality to identify which side satisfies it.
Do not use a point on a boundary line as a test point: it cannot tell you which side satisfies the inequality.
If the required side is unclear, substitute a simple test point such as , provided it is not on the boundary.
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A test point tells you which side of the boundary to show as the solution.
Specification 7.02a · Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Foundation), Paper 4 (Higher), Paper 5 (Higher), Paper 6 (Higher)
Revise: Graphical Linear InequalitiesIf the statement is true, the side containing the test point is the solution region. If it is false, choose the opposite side.