Mathematics A-Level
discriminant and intersections
What discriminant and intersections means in Mathematics A-Level, as defined for WJEC.
Definition of discriminant and intersections
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Reference: WJEC
A repeated root with discriminant zero corresponds to tangential contact, and no real roots indicates that the curves do not meet.
Topics that use discriminant and intersections
- Algebra and Functions (AS Unit 1: Pure Mathematics A) (WJEC A-Level)
Related terms
- algebraic division
- Asymptotes
- boundary curves
- Completing the square
- conjunction
- critical values
- curve sketching
- dashed and solid lines
Using discriminant and intersections in the exam
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