quadratic inequalities
What quadratic inequalities means in Mathematics A-Level, as defined for WJEC.
Definitions of quadratic inequalities
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Reference: WJEC
Solving problems often involves forming and solving inequalities in an unknown parameter k from the discriminant conditions.
Must be rearranged into the standard form ax² + bx + c > 0 or ax² + bx + c ≤ 0 before solving.
Topics that use quadratic inequalities
- 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 quadratic inequalities in the exam
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