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GCSE Mathematics · key term
A straight path extending indefinitely in both directions.
Used by AQA, Edexcel and OCR
Specification G1 · Paper 1, Paper 2, Paper 3
A straight one-dimensional object that continues without end in both directions.
Revise: Geometric Notation: Points, Lines and PlanesA mathematical line is straight and continues for ever in both directions. A drawing can show only part of it, so arrowheads at both ends indicate that it continues.
Specification G1 · Paper 1, Paper 2, Paper 3
Revise: Geometric Terms and NotationsA line is straight and continues indefinitely in both directions.
Specification 8.01a · Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Foundation), Paper 4 (Higher), Paper 5 (Higher), Paper 6 (Higher)
A straight path that extends indefinitely in both directions.
Revise: Shape TerminologyA line through those points is different. It continues indefinitely beyond both of them, even though a diagram can show only part of it.
Do not assume that lines are parallel or perpendicular just because a sketch looks that way. Use the written information or the conventional markings.
Use for parallel lines and for perpendicular lines; do not replace either symbol with an equals sign.
In a 3D diagram, lines that never meet are not necessarily parallel: they must also lie in the same plane.
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