GCSE Maths: Quadratic Graphs
Plot and read parabolas: roots, the turning point, the line of symmetry, and solving equations from a graph. Adaptive practice for AQA, Edexcel, OCR and Eduqas.
What you need to know
The concepts examiners test on quadratic graphs, and what each one is really asking.
Where marks get lost
The exam technique that separates a correct method from a correct answer.
- Joining the points with straight lines instead of a smooth curve
- Squaring a negative x incorrectly — (−3)² is 9, not −9
- Reading only one root when the line crosses the curve twice
- Giving the turning point as a single number rather than a coordinate pair
Quadratic Graphs questions students ask
Is Quadratic Graphs on the Foundation paper?
Yes. Quadratic Graphs appears at both Foundation and Higher tier, though Higher papers take it further.
What should I know before starting Quadratic Graphs?
It builds on Quadratics and Straight-Line Graphs. If those feel shaky, practise them first — Quadratic Graphs questions assume them.
What is the most common mistake in Quadratic Graphs?
Joining the points with straight lines instead of a smooth curve.
Which exam boards cover Quadratic Graphs?
All four we support — AQA, Edexcel, OCR and Eduqas. GCSE Maths subject content is set by the DfE, so the topic is common to every board; what changes is the paper structure and the grade boundaries.